<SEC-DOCUMENT>0001437749-21-025935.txt : 20211109
<SEC-HEADER>0001437749-21-025935.hdr.sgml : 20211109
<ACCEPTANCE-DATETIME>20211109162541
ACCESSION NUMBER:		0001437749-21-025935
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		87
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211109
DATE AS OF CHANGE:		20211109

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FUEL TECH, INC.
		CENTRAL INDEX KEY:			0000846913
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFYING EQUIP [3564]
		IRS NUMBER:				205657551
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33059
		FILM NUMBER:		211392603

	BUSINESS ADDRESS:	
		STREET 1:		27601 BELLA VISTA PARKWAY
		CITY:			WARRENVILLE
		STATE:			IL
		ZIP:			60555
		BUSINESS PHONE:		6308454431

	MAIL ADDRESS:	
		STREET 1:		27601 BELLA VISTA PARKWAY
		CITY:			WARRENVILLE
		STATE:			IL
		ZIP:			60555

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FUEL TECH N V
		DATE OF NAME CHANGE:	19930510
</SEC-HEADER>
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<TYPE>10-Q
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    &#xa0;
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  <div><table style="width: 100%; text-indent: 0px; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="vertical-align:bottom;border-bottom:solid 1px #000000;;width:100%;">&#xa0;</td></tr>
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<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
<p style="font-family: Times New Roman; font-size: 16pt; margin: 0pt; text-align: center;"><b>UNITED STATES</b></p>
<p style="font-family: Times New Roman; font-size: 16pt; margin: 0pt; text-align: center;"><b>SECURITIES AND EXCHANGE COMMISSION</b></p>
<p style="font-family: Times New Roman; font-size: 12pt; margin: 0pt; text-align: center;"><b>Washington, D.C. 20549</b></p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family: Times New Roman; font-size: 18pt; margin: 0pt; text-align: center;"><b>FORM <ix:nonNumeric name="dei:DocumentType" contextRef="d_2021-01-01_2021-09-30">10-Q</ix:nonNumeric></b></p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">(Mark One)</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<table style="width: 100%; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="vertical-align: top;"><td style="width: 18pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><ix:nonNumeric name="dei:DocumentQuarterlyReport" format="ixt-sec:boolballotbox" contextRef="d_2021-01-01_2021-09-30">&#x2612;</ix:nonNumeric></p> </td><td> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</b></p> </td></tr>
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<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>For the quarterly period ended </b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><ix:nonNumeric name="dei:DocumentPeriodEndDate" format="ixt:datemonthdayyearen" contextRef="d_2021-01-01_2021-09-30">September 30, 2021</ix:nonNumeric></b></p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 5pt 0pt; text-align: center; text-indent: 0pt; background-color: rgba(0, 0, 0, 0); color: rgb(0, 0, 0);"><b>or</b>&#xa0;</p>
<table style="width: 100%; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="vertical-align: top;"><td style="width: 18pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><ix:nonNumeric name="dei:DocumentTransitionReport" format="ixt-sec:boolballotbox" contextRef="d_2021-01-01_2021-09-30">&#x2610;</ix:nonNumeric></p> </td><td> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</b></p> </td></tr>
</tbody></table>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 5pt 0pt; text-align: center; text-indent: 0pt;"><b>For the transition period from ______&#xa0;to______.</b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Commission file number: <ix:nonNumeric name="dei:EntityFileNumber" contextRef="d_2021-01-01_2021-09-30">001-33059</ix:nonNumeric></b></p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:24pt;margin:0pt;text-align:center;"><b>FUEL TECH, INC.</b></p>
<p style="font-family: Times New Roman; font-size: 9pt; margin: 0pt; text-align: center;"><b>(Exact name of registrant as specified in its charter)</b></p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<table style="width: 100%; text-indent: 0px; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="vertical-align:top;width:49.6%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><ix:nonNumeric name="dei:EntityIncorporationStateCountryCode" format="ixt-sec:stateprovnameen" contextRef="d_2021-01-01_2021-09-30">Delaware</ix:nonNumeric></b></p> </td><td style="vertical-align:top;width:49.6%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><ix:nonNumeric name="dei:EntityTaxIdentificationNumber" contextRef="d_2021-01-01_2021-09-30">20-5657551</ix:nonNumeric></b></p> </td></tr>
<tr><td style="vertical-align:bottom;width:49.6%;"> <p style="font-family: Times New Roman; font-size: 8pt; margin: 0pt; text-align: center;"><b>(State or other jurisdiction of</b></p> <p style="font-family: Times New Roman; font-size: 8pt; margin: 0pt; text-align: center;"><b>incorporation of organization)</b></p> </td><td style="vertical-align:bottom;width:49.6%;"> <p style="font-family: Times New Roman; font-size: 8pt; margin: 0pt; text-align: center;"><b>(I.R.S. Employer</b></p> <p style="font-family: Times New Roman; font-size: 8pt; margin: 0pt; text-align: center;"><b>Identification Number)</b></p> </td></tr>
</tbody></table>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Fuel Tech, Inc.</b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><ix:nonNumeric name="dei:EntityAddressAddressLine1" contextRef="d_2021-01-01_2021-09-30">27601 Bella Vista Parkway</ix:nonNumeric></b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><ix:nonNumeric name="dei:EntityAddressCityOrTown" contextRef="d_2021-01-01_2021-09-30">Warrenville</ix:nonNumeric>, <ix:nonNumeric name="dei:EntityAddressStateOrProvince" contextRef="d_2021-01-01_2021-09-30">IL</ix:nonNumeric> <ix:nonNumeric name="dei:EntityAddressPostalZipCode" contextRef="d_2021-01-01_2021-09-30">60555-1617</ix:nonNumeric></b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><ix:nonNumeric name="dei:CityAreaCode" contextRef="d_2021-01-01_2021-09-30">630</ix:nonNumeric>-<ix:nonNumeric name="dei:LocalPhoneNumber" contextRef="d_2021-01-01_2021-09-30">845-4500</ix:nonNumeric></b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>www.ftek.com</b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>(Address and telephone number of principal executive offices)</b></p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">&#xa0;&#xa0;________________________________</p>
<p style="font-family: Times New Roman; font-size: 6pt; margin: 0pt;">&#xa0;</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">Securities registered pursuant to Section 12(b) of the Act:</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt 7.2pt;text-align:left;">&#xa0;</p>
<table style="width: 100%; text-indent: 0px; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="vertical-align: middle; width: 33%; border-width: 1px; border-style: solid; border-color: black;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">Title of each class</p> </td><td style="vertical-align: middle; width: 34%; border-top: 1px solid black; border-bottom: 1px solid black;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">Trading Symbol(s)</p> </td><td style="vertical-align: middle; width: 33%; border-width: 1px; border-style: solid; border-color: black;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">Name of each exchange on which registered</p> </td></tr>
<tr><td style="vertical-align: middle; width: 33%; border-bottom: 1px solid black; border-left: 1px solid black; border-right: 1px solid black;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><ix:nonNumeric name="dei:Security12bTitle" contextRef="d_2021-01-01_2021-09-30">Common Stock</ix:nonNumeric></p> </td><td style="vertical-align: middle; width: 34%; border-bottom: 1px solid black;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">&#xa0;<ix:nonNumeric name="dei:TradingSymbol" contextRef="d_2021-01-01_2021-09-30">FTEK</ix:nonNumeric></p> </td><td style="vertical-align: middle; width: 33%; border-bottom: 1px solid black; border-left: 1px solid black; border-right: 1px solid black;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><ix:nonNumeric name="dei:SecurityExchangeName" format="ixt-sec:exchnameen" contextRef="d_2021-01-01_2021-09-30">NASDAQ</ix:nonNumeric></p> </td></tr>
</tbody></table>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt 7.2pt;text-align:left;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Indicate by check mark whether the registrant: (1)&#xa0;has filed all reports required to be filed by Section&#xa0;13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2)&#xa0;has been subject to such filing requirements for the past 90 days.&#xa0;&#xa0;&#xa0;&#xa0;<ix:nonNumeric name="dei:EntityCurrentReportingStatus" contextRef="d_2021-01-01_2021-09-30">Yes</ix:nonNumeric>&#xa0;&#xa0;&#x2612;&#xa0;&#xa0;&#xa0;&#xa0;No&#xa0;&#xa0;&#x2610;</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted&#xa0;pursuant to Rule 405 of Regulation S-T (&#xa7;232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).&#xa0;&#xa0;&#xa0;&#xa0;<ix:nonNumeric name="dei:EntityInteractiveDataCurrent" contextRef="d_2021-01-01_2021-09-30">Yes</ix:nonNumeric>&#xa0;&#xa0;&#x2612;&#xa0;&#xa0;&#xa0;&#xa0;No&#xa0;&#xa0;&#x2610;</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of &#x201c;large accelerated filer,&#x201d; &#x201c;accelerated filer,&#x201d; &#x201c;smaller reporting company,&#x201d; and &#x201c;emerging growth company&#x201d; in Rule 12b-2 of the Exchange Act.</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<table style="width: 100%; text-indent: 0px; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin-left: 0pt; margin-right: 0pt;" cellspacing="0" cellpadding="1"><tbody><tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"><td style="vertical-align: bottom; width: 24.4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Large&#xa0;accelerated&#xa0;filer</p> </td><td style="vertical-align: bottom; width: 0.8%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 46.1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#x2610;</p> </td><td style="vertical-align: bottom; width: 24.4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Accelerated&#xa0;filer</p> </td><td style="vertical-align: bottom; width: 0.8%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 3.5%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#x2610;</p> </td></tr>
<tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"><td style="vertical-align: bottom; width: 24.4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><ix:nonNumeric name="dei:EntityFilerCategory" format="ixt-sec:entityfilercategoryen" contextRef="d_2021-01-01_2021-09-30">Non-accelerated filer</ix:nonNumeric></p> </td><td style="vertical-align: bottom; width: 0.8%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 46.1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#x2612;</p> </td><td style="vertical-align: bottom; width: 24.4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Smaller&#xa0;reporting&#xa0;company</p> </td><td style="vertical-align: bottom; width: 0.8%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 3.5%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><ix:nonNumeric name="dei:EntitySmallBusiness" format="ixt-sec:boolballotbox" contextRef="d_2021-01-01_2021-09-30">&#x2612;</ix:nonNumeric></p> </td></tr>
<tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"><td style="vertical-align: bottom; width: 24.4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 0.8%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 46.1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 24.4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Emerging growth company</p> </td><td style="vertical-align: bottom; width: 0.8%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td><td style="vertical-align: bottom; width: 3.5%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><ix:nonNumeric name="dei:EntityEmergingGrowthCompany" format="ixt-sec:boolballotbox" contextRef="d_2021-01-01_2021-09-30">&#x2610;</ix:nonNumeric></p> </td></tr>
</tbody></table>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act &#x2610;</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).&#xa0;&#xa0;&#xa0;&#xa0;Yes&#xa0;&#xa0;<ix:nonNumeric name="dei:EntityShellCompany" format="ixt-sec:boolballotbox" contextRef="d_2021-01-01_2021-09-30">&#x2610;</ix:nonNumeric>&#xa0;&#xa0;&#xa0;&#xa0;No&#xa0;&#xa0;&#x2612;</p>
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">On October 31, 2021 there were outstanding <ix:nonFraction name="dei:EntityCommonStockSharesOutstanding" scale="0" unitRef="Share" decimals="INF" format="ixt:numdotdecimal" contextRef="i_2021-10-31">30,263,791</ix:nonFraction>&#xa0;shares of Common Stock, par value $0.01 per share, of the registrant.</p>
<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
<table style="width: 100%; text-indent: 0px; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="vertical-align:bottom;border-bottom:solid 1px #000000;;width:100%;">&#xa0;</td></tr>
</tbody></table>
<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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    <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><a id="toc" title="toc" href="#"></a>FUEL TECH, INC.</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">Form 10-Q for the nine-month period ended September 30, 2021</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>INDEX</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <table cellpadding="4" cellspacing="0" style="width: 100%; text-indent: 0px; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin-left: 0pt; margin-right: 0pt;">
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      <td style="vertical-align: bottom; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; border-bottom: 1px solid rgb(0, 0, 0); width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">Page</p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td colspan="2" style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#pibs" style="-sec-extract:exhibit;">PART I. FINANCIAL INFORMATION</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#pibs" style="-sec-extract:exhibit;">Item&#xa0;1.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#pibs" style="-sec-extract:exhibit;">Financial Statements (Unaudited)</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; text-align: center;"><a class="tocPGNUM" href="#bs">1</a></td>
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      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#pibs" style="-sec-extract:exhibit;">Condensed Consolidated Balance Sheets as of September&#xa0;30, 2021 and December 31, 2020</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#bs">1</a></p> </td>
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      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#income" style="-sec-extract:exhibit;">Condensed Consolidated Statements of Operations for the Three and Nine&#xa0;Months Ended September&#xa0;30, 2021 and 2020</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#income">2</a></p> </td>
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      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#compinc" style="-sec-extract:exhibit;">Condensed Consolidated Statements of Comprehensive Income (Loss) for the Three and Nine&#xa0;Months Ended September&#xa0;30, 2021 and 2020</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#compinc">3</a></p> </td>
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      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#she" style="-sec-extract:exhibit;">Condensed Consolidated Statements of Stockholders' Equity for the Three and Nine&#xa0;Months Ended September, 2021 and 2020</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#she">4</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: bottom; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#cf" style="-sec-extract:exhibit;">Condensed Consolidated Statements of Cash Flows for the Nine&#xa0;Months Ended September&#xa0;30, 2021 and 2020</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#cf">5</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#notes" style="-sec-extract:exhibit;">Notes to Condensed Consolidated Financial Statements</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#notes">6</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#mda" style="-sec-extract:exhibit;">Item&#xa0;2.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#mda" style="-sec-extract:exhibit;">Management&#x2019;s Discussion and Analysis of Financial Condition and Results of Operations</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#mda">20</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#qq" style="-sec-extract:exhibit;">Item 3.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#qq" style="-sec-extract:exhibit;">Quantitative and Qualitative Disclosures about Market Risk</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#qq">22</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#cp" style="-sec-extract:exhibit;">Item 4.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#cp" style="-sec-extract:exhibit;">Controls and Procedures</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#cp">22</a></p> </td>
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      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#pii" style="-sec-extract:exhibit;">PART&#xa0;II.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#pii" style="-sec-extract:exhibit;">OTHER INFORMATION</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; text-align: center;"><a class="tocPGNUM" href="#pii">23</a></td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#legal" style="-sec-extract:exhibit;">Item 1.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#legal" style="-sec-extract:exhibit;">Legal Proceedings</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#legal">23</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#risk" style="-sec-extract:exhibit;">Item 1A.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#risk" style="-sec-extract:exhibit;">Risk Factors</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#risk">23</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#equitysales" style="-sec-extract:exhibit;">Item 2.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#equitysales" style="-sec-extract:exhibit;">Unregistered Sales of Equity Securities and Use of Proceeds</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#risk">23</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#exhibits" style="-sec-extract:exhibit;">Item 6.</a></p> </td>
      <td style="vertical-align: bottom; width: 89%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#exhibits" style="-sec-extract:exhibit;">Exhibits</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#exhibits">24</a></p> </td>
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     <tr style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">
      <td colspan="2" style="vertical-align: top; width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="#sigs" style="-sec-extract:exhibit;">SIGNATURES</a></p> </td>
      <td style="vertical-align: bottom; width: 4%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><a class="tocPGNUM" href="#sigs">25</a></p> </td>
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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     <td style="width: 45pt;"> <p style="margin: 0pt; text-align: left; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"><b><a id="pibs" title="pibs" href="#"></a>PART I. </b></p> </td>
     <td> <p style="margin: 0pt; text-align: left; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;"><b>FINANCIAL INFORMATION</b></p> </td>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
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     <td style="width: 45pt;"> <p style="margin: 0pt; text-align: left; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">Item 1.</p> </td>
     <td> <p style="margin: 0pt; text-align: left; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">Financial Statements</p> </td>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><a id="bs" title="bs" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">CONDENSED CONSOLIDATED BALANCE SHEETS</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Unaudited)(in thousands, except share and per share data)</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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   <table class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30,</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31,</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>ASSETS</b></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Current assets:</p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Cash and cash equivalents</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770856" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">35,161</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770857" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-4">10,640</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Restricted cash</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770858" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">891</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770859" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">1,595</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Accounts receivable, net</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770860" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccountsReceivableNetCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">5,062</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770861" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccountsReceivableNetCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">6,548</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Inventories, net</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770862" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:InventoryNet" scale="3" format="ixt:numdotdecimal" decimals="-3">128</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770863" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:InventoryNet" scale="3" format="ixt:numdotdecimal" decimals="-3">97</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Prepaid expenses and other current assets</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770864" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:PrepaidExpenseAndOtherAssetsCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,064</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770865" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:PrepaidExpenseAndOtherAssetsCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">2,193</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total current assets</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770866" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AssetsCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">42,306</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770867" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AssetsCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">21,073</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Property and equipment, net of accumulated depreciation of $<span style="-sec-ix-hidden:c78770870">18,582</span> and $<span style="-sec-ix-hidden:c78770871">26,889</span>, respectively</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770868" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:PropertyPlantAndEquipmentNet" scale="3" format="ixt:numdotdecimal" decimals="-3">5,293</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770869" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:PropertyPlantAndEquipmentNet" scale="3" format="ixt:numdotdecimal" decimals="-4">5,220</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Goodwill</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770872" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:Goodwill" scale="3" format="ixt:numdotdecimal" decimals="-3">2,116</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770873" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:Goodwill" scale="3" format="ixt:numdotdecimal" decimals="-3">2,116</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other intangible assets, net of accumulated amortization of $<span style="-sec-ix-hidden:c78770876">871</span> and $<span style="-sec-ix-hidden:c78770877">757</span>, respectively</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770874" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:IntangibleAssetsNetExcludingGoodwill" scale="3" format="ixt:numdotdecimal" decimals="-3">475</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770875" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:IntangibleAssetsNetExcludingGoodwill" scale="3" format="ixt:numdotdecimal" decimals="-3">553</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Restricted cash</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770878" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">270</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770879" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">371</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Right-of-use operating lease assets</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770880" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" format="ixt:numdotdecimal" decimals="-3">283</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770881" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" format="ixt:numdotdecimal" decimals="-3">394</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other assets</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78770882" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OtherAssetsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">296</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770883" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OtherAssetsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">361</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total assets</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770884" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:Assets" scale="3" format="ixt:numdotdecimal" decimals="-3">51,039</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770885" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:Assets" scale="3" format="ixt:numdotdecimal" decimals="-3">30,088</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>LIABILITIES AND STOCKHOLDERS' EQUITY</b></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Current liabilities:</p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Accounts payable</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770888" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccountsPayableCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,354</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770889" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccountsPayableCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">2,353</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Accrued liabilities:</p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Operating lease liabilities - current</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770891" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">128</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770892" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">149</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Employee compensation</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770893" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:EmployeeRelatedLiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">701</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770894" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:EmployeeRelatedLiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">930</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Other accrued liabilities</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78770895" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OtherAccruedLiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,829</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770896" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OtherAccruedLiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">2,099</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total current liabilities</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770897" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">4,012</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770898" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:LiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">5,531</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease liabilities - non-current</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770899" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">147</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770900" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">237</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Long-term borrowings</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770901" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LongTermDebtNoncurrent" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770902" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:LongTermDebtNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,556</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Deferred income taxes, net</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770903" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:DeferredIncomeTaxLiabilitiesNet" scale="3" format="ixt:numdotdecimal" decimals="-3">134</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770904" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:DeferredIncomeTaxLiabilitiesNet" scale="3" format="ixt:numdotdecimal" decimals="-3">134</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other liabilities</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78770905" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OtherLiabilitiesNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">302</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770906" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OtherLiabilitiesNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">309</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total liabilities</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78770907" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:Liabilities" scale="3" format="ixt:numdotdecimal" decimals="-3">4,595</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770908" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:Liabilities" scale="3" format="ixt:numdotdecimal" decimals="-3">7,767</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stockholders&#x2019; equity:</p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Common stock, $<span style="-sec-ix-hidden:c78770912"><span style="-sec-ix-hidden:c78770913">.01</span></span> par value, <span style="-sec-ix-hidden:c78770914"><span style="-sec-ix-hidden:c78770915">40,000,000</span></span> shares authorized, <span style="-sec-ix-hidden:c78770916">31,227,300</span> and <span style="-sec-ix-hidden:c78770917">25,639,702</span> shares issued, and <span style="-sec-ix-hidden:c78770918">30,263,791</span> and <span style="-sec-ix-hidden:c78770919">25,228,951</span> shares outstanding, respectively</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770910" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:CommonStockValue" scale="3" format="ixt:numdotdecimal" decimals="-3">312</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770911" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:CommonStockValue" scale="3" format="ixt:numdotdecimal" decimals="-3">262</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Additional paid-in capital</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770920" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AdditionalPaidInCapitalCommonStock" scale="3" format="ixt:numdotdecimal" decimals="-3">164,178</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770921" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AdditionalPaidInCapitalCommonStock" scale="3" format="ixt:numdotdecimal" decimals="-3">140,138</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Accumulated deficit</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78770922" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RetainedEarningsAccumulatedDeficit" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">114,305</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770923" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:RetainedEarningsAccumulatedDeficit" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">114,603</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Accumulated other comprehensive loss</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78770924" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,583</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770925" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">1,370</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Nil coupon perpetual loan notes</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78770926" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:ConvertibleDebt" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770927" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:ConvertibleDebt" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Treasury stock, at cost</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78770928" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:TreasuryStockValue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,234</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78770929" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:TreasuryStockValue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,182</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total stockholders&#x2019; equity</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78770930" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">46,444</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770931" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">22,321</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total liabilities and stockholders&#x2019; equity</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770932" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LiabilitiesAndStockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">51,039</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770933" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:LiabilitiesAndStockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">30,088</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td></tr>
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  <p style="margin: 0pt; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</p>
  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">See notes to condensed consolidated financial statements.</p>
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    &#xa0;
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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     <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       1
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      <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   </div>
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    &#xa0;
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  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0; &#xa0;&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><a id="income" title="income" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Unaudited)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(in thousands, except share and per-share data)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <div>
   <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
    <tbody>
     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Revenues</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770946" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">7,559</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770947" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">8,155</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770948" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">17,810</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770949" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,334</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Costs and expenses:</b></p> </td>
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      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; margin-left: 9pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Cost of sales</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770951" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-4">3,840</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770952" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,249</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770953" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-4">9,150</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770954" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">8,299</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; margin-left: 9pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Selling, general and administrative</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770955" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">2,801</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770956" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">3,184</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770957" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">8,858</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770958" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">9,825</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; margin-left: 9pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Research and development</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770959" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">340</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770960" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">285</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770961" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">1,070</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770962" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">880</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770963" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:CostsAndExpenses" scale="3" format="ixt:numdotdecimal" decimals="-3">6,981</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770964" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:CostsAndExpenses" scale="3" format="ixt:numdotdecimal" decimals="-3">5,718</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770965" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:CostsAndExpenses" scale="3" format="ixt:numdotdecimal" decimals="-3">19,078</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770966" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:CostsAndExpenses" scale="3" format="ixt:numdotdecimal" decimals="-3">19,004</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Operating income (loss)</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770967" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">578</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770968" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">2,437</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770969" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,268</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770970" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">2,670</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Interest expense</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770971" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:InterestExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">5</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770972" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:InterestExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">9</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770973" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:InterestExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">14</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770974" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:InterestExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">15</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Interest income</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770975" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:InvestmentIncomeInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">1</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770976" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:InvestmentIncomeInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">3</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770977" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:InvestmentIncomeInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">4</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770978" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:InvestmentIncomeInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">16</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other income (expense),net</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770979" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">104</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78770980" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">55</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770981" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">1,586</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770982" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">83</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Income (loss) before income taxes</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770983" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">678</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770984" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">2,376</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78770985" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" format="ixt:numdotdecimal" decimals="-3">308</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78770986" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,586</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Income tax expense</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770987" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78770988" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78770989" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" format="ixt:numdotdecimal" decimals="-4">10</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78770990" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" format="ixt:numdotdecimal" decimals="-3">149</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Net income (loss)</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770991" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">678</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770992" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">2,376</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770993" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">298</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78770994" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,735</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Net income (loss) per common share:</b></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Basic net income (loss) per common share</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770996" contextRef="d_2021-07-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">0.02</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770997" contextRef="d_2020-07-01_2020-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">0.10</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78770998" contextRef="d_2021-01-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">0.01</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78770999" contextRef="d_2020-01-01_2020-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareBasic" scale="0" format="ixt:numdotdecimal" decimals="INF" sign="-">0.11</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Diluted net income (loss) per common share</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771000" contextRef="d_2021-07-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareDiluted" scale="0" format="ixt:numdotdecimal" decimals="INF">0.02</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771001" contextRef="d_2020-07-01_2020-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareDiluted" scale="0" format="ixt:numdotdecimal" decimals="INF">0.09</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771002" contextRef="d_2021-01-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareDiluted" scale="0" format="ixt:numdotdecimal" decimals="INF">0.01</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771003" contextRef="d_2020-01-01_2020-09-30" unitRef="USDPerShare" name="us-gaap:EarningsPerShareDiluted" scale="0" format="ixt:numdotdecimal" decimals="INF" sign="-">0.11</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Weighted-average number of common shares outstanding:</b></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; margin-left: 9pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Basic</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771005" contextRef="d_2021-07-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">30,264,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771006" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">24,701,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771007" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">29,356,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771008" contextRef="d_2020-01-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">24,656,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; margin-left: 9pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Diluted</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771009" contextRef="d_2021-07-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">30,335,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771010" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">25,120,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771011" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">29,482,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771012" contextRef="d_2020-01-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">24,656,000</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
     </tr>

    </tbody>
   </table>
  </div>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">See notes to condensed consolidated financial statements.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <div class="PGBK" style="width: 100%; margin-left: 0pt; margin-right: 0pt">
   <div class="PGFTR" style="text-align: center; width: 100%">
    <div class="hf-row">
     <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       2
     </div>
    </div>
   </div>
   <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
   <div class="PGHDR" style="text-align: left; width: 100%">
    <div class="hf-row">
     <div class="hf-cell TOCLink" style="display: inline-block; text-align: left;">
      <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
     </div>
    </div>
   </div>
  </div>
  <div>
    &#xa0;
  </div>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><a id="compinc" title="compinc" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Unaudited)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(in thousands)</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <div>
   <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
    <tbody>
     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net income (loss)</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771025" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">678</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771026" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">2,376</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771027" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">298</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771028" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,735</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other comprehensive income (loss):</p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Foreign currency translation adjustments</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771030" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">153</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771031" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">268</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771032" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">213</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771033" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">189</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Comprehensive income (loss)</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771034" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:ComprehensiveIncomeNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">525</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771035" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:ComprehensiveIncomeNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">2,644</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771036" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ComprehensiveIncomeNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">85</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771037" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ComprehensiveIncomeNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,546</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
     </tr>

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  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">See notes to condensed consolidated financial statements.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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      <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;"><b><a id="she" title="she" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">CONDENSED STATEMENTS OF STOCKHOLDERS&#x2019; EQUITY</p>
  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">(Unaudited)(in thousands of dollars or shares, as appropriate)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">The following summarizes the changes in total stockholders' equity for the three and nine months ended September 30, 2020:</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
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      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Accumulated</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><em style="font: inherit;"> </em><p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;">Nil</p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
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      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Additional</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Other</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Coupon</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: thin solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;"><em style="font: inherit;">Common Stock</em></em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Paid-in</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Accumulated</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Comprehensive</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Perpetual</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Treasury</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Shares</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Amount</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Capital</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Deficit</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Loss</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Loan Notes</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Stock</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Total</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; width: 20%;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at December 31, 2019</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771070" contextRef="i_2019-12-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">24,592</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771071" contextRef="i_2019-12-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">254</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771072" contextRef="i_2019-12-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-4">139,560</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771073" contextRef="i_2019-12-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">110,325</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771074" contextRef="i_2019-12-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,778</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771075" contextRef="i_2019-12-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771076" contextRef="i_2019-12-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,612</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771077" contextRef="i_2019-12-31" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">26,175</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net loss</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771079" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771080" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771081" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,567</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771082" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771083" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771084" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771085" contextRef="d_2020-01-01_2020-03-31" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,567</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Foreign currency translation adjustments</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771087" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771088" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771089" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771090" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">231</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771091" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771092" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771093" contextRef="d_2020-01-01_2020-03-31" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">231</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stock compensation expense</p> </td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771114" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771115" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771116" contextRef="d_2020-01-01_2020-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:numdotdecimal" decimals="-3">5</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771117" contextRef="d_2020-01-01_2020-03-31" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:numdotdecimal" decimals="-3">5</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at March 31, 2020</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771118" contextRef="i_2020-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">24,636</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771119" contextRef="i_2020-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">254</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771120" contextRef="i_2020-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">139,641</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771121" contextRef="i_2020-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">112,892</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771122" contextRef="i_2020-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,009</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771123" contextRef="i_2020-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771124" contextRef="i_2020-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,617</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771127" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771128" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771129" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,544</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771130" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771131" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771132" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771133" contextRef="d_2020-04-01_2020-06-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,544</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
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     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Foreign currency translation adjustments</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771135" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771136" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771137" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771138" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">152</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771139" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771140" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771141" contextRef="d_2020-04-01_2020-06-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">152</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stock compensation expense</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771143" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771144" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-3">69</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771145" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771146" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771147" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771149" contextRef="d_2020-04-01_2020-06-30" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-3">69</ix:nonFraction></td>
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     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Common shares issued upon vesting of restricted stock units</p> </td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771150" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross" scale="3" format="ixt:numdotdecimal" decimals="-3">66</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771151" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:numdotdecimal" decimals="-3">1</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771152" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771153" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771154" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771155" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771156" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771157" contextRef="d_2020-04-01_2020-06-30" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Treasury shares withheld</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
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      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771158" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:TreasuryStockSharesAcquired" scale="3" format="ixt:numdotdecimal" decimals="-3">1</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
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      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771159" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771160" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771161" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771162" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771163" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771164" contextRef="d_2020-04-01_2020-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771165" contextRef="d_2020-04-01_2020-06-30" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at June 30, 2020</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771166" contextRef="i_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">24,701</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771167" contextRef="i_2020-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">255</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771168" contextRef="i_2020-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-4">139,710</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771169" contextRef="i_2020-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">115,436</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771170" contextRef="i_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,857</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771171" contextRef="i_2020-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding: 0; margin: 0">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding: 0; margin: 0">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding: 0; margin: 0">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding: 0; margin: 0">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding: 0; margin: 0">&#xa0;</td>
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     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
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      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771198" contextRef="i_2020-09-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">24,701</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771199" contextRef="i_2020-09-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">255</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771200" contextRef="i_2020-09-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">139,767</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771201" contextRef="i_2020-09-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">113,060</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771202" contextRef="i_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,589</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771203" contextRef="i_2020-09-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771204" contextRef="i_2020-09-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,618</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771205" contextRef="i_2020-09-30" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">23,831</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

    </tbody>
   </table>
  </div>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">The following summarizes the changes in total stockholders' equity for the three and nine months ended September 30, 2021:</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <div>
   <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 9pt; font-family: &quot;Times New Roman&quot;, Times, serif; text-indent: 0px;">
    <tbody>
     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Accumulated</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><em style="font: inherit;"> </em><p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;">Nil</p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Additional</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Other</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Coupon</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: thin solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;"><em style="font: inherit;">Common Stock</em></em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Paid-in</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Accumulated</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Comprehensive</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Perpetual</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Treasury</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"><em style="font: inherit;">&#xa0;</em></td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Shares</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Amount</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Capital</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Deficit</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Loss</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Loan Notes</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Stock</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; text-align: center; margin: 0pt;"><em style="font: inherit;">Total</em></p> </td>
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; width: 20%;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at December 31, 2020</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771238" contextRef="i_2020-12-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">25,229</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771239" contextRef="i_2020-12-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">262</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771240" contextRef="i_2020-12-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">140,138</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771241" contextRef="i_2020-12-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">114,603</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771242" contextRef="i_2020-12-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">1,370</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771243" contextRef="i_2020-12-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771244" contextRef="i_2020-12-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,182</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771245" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">22,321</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771247" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771248" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771249" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">398</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771250" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771251" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771252" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771253" contextRef="d_2021-01-01_2021-03-31" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">398</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Foreign currency translation adjustments</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771255" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771256" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771257" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771258" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">193</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771259" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771260" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771261" contextRef="d_2021-01-01_2021-03-31" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">193</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stock compensation expense</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
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      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771263" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771264" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-4">20</ix:nonFraction></td>
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      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771265" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771266" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771267" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771268" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771269" contextRef="d_2021-01-01_2021-03-31" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-4">20</ix:nonFraction></td>
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      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Common stock issued in connection with private placement, net</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771270" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" scale="3" format="ixt:numdotdecimal" decimals="-6">5,000</ix:nonFraction></td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771271" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:numdotdecimal" decimals="-4">50</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771272" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:numdotdecimal" decimals="-3">23,979</ix:nonFraction></td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771273" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771274" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771275" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771276" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771277" contextRef="d_2021-01-01_2021-03-31" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueNewIssues" scale="3" format="ixt:numdotdecimal" decimals="-3">24,029</ix:nonFraction></td>
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      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Common shares issued upon vesting of restricted stock units</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771278" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross" scale="3" format="ixt:numdotdecimal" decimals="-4">50</ix:nonFraction></td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771279" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771280" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771281" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771282" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771283" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771284" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771285" contextRef="d_2021-01-01_2021-03-31" unitRef="USD" name="us-gaap:StockIssuedDuringPeriodValueRestrictedStockAwardGross" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771286" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:TreasuryStockSharesAcquired" scale="3" format="ixt:numdotdecimal" decimals="-3">15</ix:nonFraction></td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771287" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771288" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771289" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771290" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771291" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771292" contextRef="d_2021-01-01_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:numdotdecimal" decimals="-3">52</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771293" contextRef="d_2021-01-01_2021-03-31" unitRef="USD" name="us-gaap:TreasuryStockValueAcquiredCostMethod" scale="3" format="ixt:numdotdecimal" decimals="-3">52</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at March 31, 2021</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771294" contextRef="i_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">30,264</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771295" contextRef="i_2021-03-31_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">312</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771296" contextRef="i_2021-03-31_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">164,137</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771297" contextRef="i_2021-03-31_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">114,205</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771299" contextRef="i_2021-03-31_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771300" contextRef="i_2021-03-31_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,234</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771301" contextRef="i_2021-03-31" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">46,523</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
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     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net loss</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771303" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771304" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771305" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">778</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771306" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771307" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771308" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">(<ix:nonFraction id="c78771309" contextRef="d_2021-04-01_2021-06-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">778</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Foreign currency translation adjustments</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771311" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771312" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771313" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771314" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">133</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771316" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;"><ix:nonFraction id="c78771317" contextRef="d_2021-04-01_2021-06-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">133</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stock compensation expense</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771319" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771320" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-4">20</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771321" contextRef="d_2021-04-01_2021-06-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at June 30, 2021</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771327" contextRef="i_2021-06-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">312</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771328" contextRef="i_2021-06-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">164,157</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771331" contextRef="i_2021-06-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771332" contextRef="i_2021-06-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,234</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
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     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net income</p> </td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><em style="font: inherit;">&#x2014;</em></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771335" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771336" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771337" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">678</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771338" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771339" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771340" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771346" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">153</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771348" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771349" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">153</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt;">)</td>
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      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stock compensation expense</p> </td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
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      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771352" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-3">21</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771353" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771354" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771355" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771356" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771357" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" scale="3" format="ixt:numdotdecimal" decimals="-3">21</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
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     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Balance at September 30, 2021</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771358" contextRef="i_2021-09-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="Share" name="us-gaap:SharesOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">30,264</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771359" contextRef="i_2021-09-30_StatementEquityComponentsAxis-CommonStockOutstandingMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">312</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771360" contextRef="i_2021-09-30_StatementEquityComponentsAxis-AdditionalPaidInCapitalMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">164,178</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771361" contextRef="i_2021-09-30_StatementEquityComponentsAxis-RetainedEarningsMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">114,305</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771362" contextRef="i_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,583</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771363" contextRef="i_2021-09-30_StatementEquityComponentsAxis-NilCouponPerpetualLoanNotesMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">76</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b>(<ix:nonFraction id="c78771364" contextRef="i_2021-09-30_StatementEquityComponentsAxis-TreasuryStockMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,234</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; padding-bottom: 1px;"><b>)</b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td>
      <td style="width: 7%; text-align: right; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><b><ix:nonFraction id="c78771365" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">46,444</ix:nonFraction></b></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
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  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">See notes to condensed consolidated financial statements.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">&#xa0;</p>
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   <div class="PGFTR" style="text-align: center; width: 100%">
    <div class="hf-row">
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       4
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      <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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    &#xa0;
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  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><a id="cf" title="cf" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Unaudited)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(in thousands)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <div>
   <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
    <tbody>
     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Operating Activities</b></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net income (loss)</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771373" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">298</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771374" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2,735</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:</p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Depreciation</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771376" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:Depreciation" scale="3" format="ixt:numdotdecimal" decimals="-3">457</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771377" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:Depreciation" scale="3" format="ixt:numdotdecimal" decimals="-3">495</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Amortization</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771378" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:AdjustmentForAmortization" scale="3" format="ixt:numdotdecimal" decimals="-3">114</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771379" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:AdjustmentForAmortization" scale="3" format="ixt:numdotdecimal" decimals="-3">139</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Loss (gain) on sale of equipment</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771380" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:GainLossOnSaleOfPropertyPlantEquipment" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">13</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771381" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:GainLossOnSaleOfPropertyPlantEquipment" scale="3" format="ixt:numdotdecimal" decimals="-3">3</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Provision for doubtful accounts, net of recoveries</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771382" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ProvisionForDoubtfulAccounts" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">2</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771383" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ProvisionForDoubtfulAccounts" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,144</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Stock-based compensation, net of forfeitures</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771384" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ShareBasedCompensation" scale="3" format="ixt:numdotdecimal" decimals="-3">61</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771385" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ShareBasedCompensation" scale="3" format="ixt:numdotdecimal" decimals="-3">208</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Gain of forgiveness on Paycheck Protection Plan Loan</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771386" contextRef="d_2021-01-01_2021-09-30_DebtInstrumentAxis-PaycheckProtectionProgramCaresActMember" unitRef="USD" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="3" format="ixt:numdotdecimal" decimals="-3">1,556</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771387" contextRef="d_2020-01-01_2020-09-30_DebtInstrumentAxis-PaycheckProtectionProgramCaresActMember" unitRef="USD" name="us-gaap:GainsLossesOnExtinguishmentOfDebt" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Changes in operating assets and liabilities:</p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Accounts receivable</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771389" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,405</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771390" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="3" format="ixt:numdotdecimal" decimals="-3">863</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Inventories</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771391" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInInventories" scale="3" format="ixt:numdotdecimal" decimals="-3">32</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771392" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInInventories" scale="3" format="ixt:numdotdecimal" decimals="-3">71</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Prepaid expenses, other current assets and other non-current assets</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771393" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,176</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771394" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">239</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Accounts payable</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771395" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInAccountsPayable" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">980</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771396" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInAccountsPayable" scale="3" format="ixt:numdotdecimal" decimals="-4">820</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; text-indent: 9pt;">Accrued liabilities and other non-current liabilities</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771397" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInAccruedLiabilities" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">382</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771398" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:IncreaseDecreaseInAccruedLiabilities" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">376</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net cash provided by (used in) operating activities</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771399" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:NetCashProvidedByUsedInOperatingActivities" scale="3" format="ixt:numdotdecimal" decimals="-3">572</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771400" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:NetCashProvidedByUsedInOperatingActivities" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">3,291</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Investing Activities</b></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Purchases of equipment and patents</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771402" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:PaymentsToAcquireProductiveAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">584</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771403" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:PaymentsToAcquireProductiveAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">206</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net cash used in investing activities</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771404" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:NetCashProvidedByUsedInInvestingActivities" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">584</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771405" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:NetCashProvidedByUsedInInvestingActivities" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">206</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Financing Activities</b></p> </td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0"> <p style="margin-top: 0pt; margin-bottom: 0pt">Proceeds from borrowings</p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0"><ix:nonFraction id="c78771407" contextRef="d_2021-01-01_2021-09-30_DebtInstrumentAxis-PaycheckProtectionProgramCaresActMember" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfLongTermDebt" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0"><ix:nonFraction id="c78771408" contextRef="d_2020-01-01_2020-09-30_DebtInstrumentAxis-PaycheckProtectionProgramCaresActMember" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfLongTermDebt" scale="3" format="ixt:numdotdecimal" decimals="-3">1,556</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding: 0; margin: 0">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Proceeds from sale of common stock issued in connection with private placement</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771409" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfPrivatePlacement" scale="3" format="ixt:numdotdecimal" decimals="-3">25,812</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771410" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfPrivatePlacement" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Costs related to sale of common stock issued in connection with private placement</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771411" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:PaymentsOfStockIssuanceCosts" scale="3" format="ixt:numdotdecimal" decimals="-3">1,783</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771412" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:PaymentsOfStockIssuanceCosts" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-variant: normal; margin: 0pt;">Taxes paid on behalf of equity award participants</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771413" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:PaymentsForRepurchaseOfEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">52</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771414" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:PaymentsForRepurchaseOfEquity" scale="3" format="ixt:numdotdecimal" decimals="-3">6</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net cash provided by financing activities</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771415" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:NetCashProvidedByUsedInFinancingActivities" scale="3" format="ixt:numdotdecimal" decimals="-3">23,977</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771416" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:NetCashProvidedByUsedInFinancingActivities" scale="3" format="ixt:numdotdecimal" decimals="-4">1,550</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Effect of exchange rate fluctuations on cash</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771417" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">249</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771418" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" format="ixt:numdotdecimal" decimals="-3">256</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
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      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Net increase (decrease) in cash, cash equivalents and restricted cash</b></p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771419" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" scale="3" format="ixt:numdotdecimal" decimals="-3">23,716</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771420" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,691</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
     </tr>

     <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cash, cash equivalents, and restricted cash at beginning of period (Note 2)</p> </td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771421" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" scale="3" format="ixt:numdotdecimal" decimals="-3">12,606</ix:nonFraction></td>
      <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771422" contextRef="i_2019-12-31" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" scale="3" format="ixt:numdotdecimal" decimals="-3">13,501</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
     </tr>

     <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
      <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Cash, cash equivalents and restricted cash at end of period (Note 2)</b></p> </td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771423" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" scale="3" format="ixt:numdotdecimal" decimals="-3">36,322</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
      <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771424" contextRef="i_2020-09-30" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" scale="3" format="ixt:numdotdecimal" decimals="-4">11,810</ix:nonFraction></td>
      <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">See notes to condensed consolidated financial statements.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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       5
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      <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b><a id="notes" title="notes" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">September 30, 2021</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Unaudited)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(in thousands, except share and per-share data)</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">1.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;General</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Organization</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech, Inc. and subsidiaries ("Fuel Tech", the "Company", "we", "us" or "our") develops and provides&#xa0;proprietary technologies for air pollution control, process optimization, water treatment, and advanced engineering services. These technologies enable customers to operate in a cost-effective and environmentally sustainable manner.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The Company&#x2019;s NOx reduction technologies reduce nitrogen oxide emissions from boilers, furnaces and other stationary combustion sources.&#xa0; To reduce NOx emissions, our technologies utilize advanced combustion modification techniques and post-combustion NOx control approaches including non-catalytic, catalytic and combined systems.&#xa0; The Company also&#xa0;provides solutions for the mitigation of particulate matter, including particulate control with electrostatic precipitator products and services, and using flue gas conditioning systems which modify the ash properties of particulate for improved collection efficiency. The Company&#x2019;s FUEL CHEM&#xae;&#xa0;technology improves the efficiency, reliability, fuel flexibility, boiler heat rate, and environmental status of combustion units by controlling slagging, fouling, corrosion, and opacity. Water treatment technologies include DGI&#x2122; Dissolved Gas Infusion Systems which utilize a patented nozzle to deliver supersaturated oxygen solutions and other gas-water combinations to target process applications or environmental issues. This infusion process has a variety of applications in the water and wastewater industries, including remediation, aeration, biological treatment, and wastewater odor management.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Many of Fuel Tech&#x2019;s products and services rely heavily on the Company&#x2019;s&#xa0;Computational Fluid Dynamics modeling capabilities, which are enhanced by internally developed, high-end visualization software.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><b>Basis of Presentation</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and with the instructions to Form <em style="font: inherit;">10</em>-Q and Article <em style="font: inherit;">10</em> of Regulation S-<em style="font: inherit;">X</em> of the Exchange Act. Accordingly, they do <em style="font: inherit;">not</em> include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the statements for the periods presented. All significant intercompany transactions and balances have been eliminated. The results of operations for the&#xa0;<em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em> are <em style="font: inherit;">not</em> necessarily indicative of the results to be expected for the full year ending <em style="font: inherit;"> December&#xa0;</em><em style="font: inherit;">31,</em> <em style="font: inherit;">2021.</em> For further information, refer to the audited consolidated financial statements and footnotes thereto included in Fuel Tech&#x2019;s Annual Report on Form <em style="font: inherit;">10</em>-K for the year ended&#xa0;<em style="font: inherit;"> December 31, 2020</em> as filed with the Securities and Exchange Commission.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>COVID-<em style="font: inherit;">19</em> Pandemic</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The effects&#xa0;of the coronavirus (COVID-<em style="font: inherit;">19</em>) global pandemic has presented&#xa0;significant risks to the Company, <em style="font: inherit;">not</em> all of which the Company is able to fully evaluate or even foresee at the current time. Although the impact of the pandemic is difficult to quantify, the Company has experienced, and <em style="font: inherit;"> may </em>continue to experience, reductions in demand for certain of our products&#xa0;due to the delay or abandonment of ongoing or anticipated projects due to our customers&#x2019;, suppliers&#x2019; and other <em style="font: inherit;">third</em> parties&#x2019; financial distress or concern regarding the volatility of global markets.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Management cannot predict the full impact of the COVID-<em style="font: inherit;">19</em> pandemic on the Company&#x2019;s sales and marketing channels and supply chain, and as a result, the ultimate extent of the effects of the COVID-<em style="font: inherit;">19</em> pandemic on the Company is highly uncertain and will depend on future developments. Such effects could exist for an extended period of time even after the pandemic might end.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Private Placement Offering</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">On <em style="font: inherit;"> February 11, 2021, </em>Fuel Tech entered into a securities purchase agreement&#xa0;to issue and sell, in a private placement, <ix:nonFraction id="c78771442" contextRef="d_2021-02-11_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="Share" name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" scale="0" format="ixt:numdotdecimal" decimals="INF">5,000,000</ix:nonFraction> shares of Common Stock&#xa0;and <ix:nonFraction id="c78771443" contextRef="d_2021-02-11_2021-02-11_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="Share" name="ftek:ClassOfWarrantOrRightNumberOfWarrantsIssued" scale="0" format="ixt:numdotdecimal" decimals="INF">2,500,000</ix:nonFraction> warrants exercisable for a total of <ix:nonFraction id="c78771444" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" scale="0" format="ixt:numdotdecimal" decimals="INF">2,500,000</ix:nonFraction> shares of Common Stock with an exercise price of $<ix:nonFraction id="c78771445" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="USDPerShare" name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" scale="0" format="ixt:numdotdecimal" decimals="INF">5.10</ix:nonFraction> per Warrant Share, at a purchase price of $<ix:nonFraction id="c78771446" contextRef="i_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="USDPerShare" name="us-gaap:SharesIssuedPricePerShare" scale="0" format="ixt:numdotdecimal" decimals="INF">5.1625</ix:nonFraction> per Share and associated warrant. The gross proceeds to the Company from the Private Placement were&#xa0;$<ix:nonFraction id="c78771447" contextRef="d_2021-02-11_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfPrivatePlacement" scale="3" format="ixt:numdotdecimal" decimals="-3">25,812</ix:nonFraction>, before deducting placement agent fees and offering expenses of $<ix:nonFraction id="c78771448" contextRef="d_2021-02-11_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="USD" name="us-gaap:PaymentsOfStockIssuanceCosts" scale="3" format="ixt:numdotdecimal" decimals="-3">1,783</ix:nonFraction>. Subject to certain ownership limitations, the Warrants are immediately exercisable upon issuance and expire on the <span style="-sec-ix-hidden:c78771449">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Warrant Shares for resale.&#xa0; In addition, the Company issued to the placement agent Warrants to purchase up to <ix:nonFraction id="c78771451" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" scale="0" format="ixt:numdotdecimal" decimals="INF">350,000</ix:nonFraction> shares of Common Stock.&#xa0; The Placement Agent Warrants are exercisable at an exercise price of $<ix:nonFraction id="c78771452" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" unitRef="USDPerShare" name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" scale="0" format="ixt:numdotdecimal" decimals="INF">6.45</ix:nonFraction>&#xa0;per share of Common Stock and expire on the <span style="-sec-ix-hidden:c78771453">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Shares and the Warrant Shares for resale.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">2.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Summary of Significant Accounting Policies</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b></b></p><ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" id="c78773608" escape="true"><p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Restricted cash</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Restricted cash as of <em style="font: inherit;"> September 30, 2021</em> represents funds that are restricted to satisfy any amount borrowed against the Company's Cash Collateral Security agreement with BMO Harris Bank N.A. The balance of restricted cash totaling $<ix:nonFraction id="c78771464" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalents" scale="3" format="ixt:numdotdecimal" decimals="-3">1,161</ix:nonFraction>&#xa0;is comprised of $<ix:nonFraction id="c78771466" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">891</ix:nonFraction>&#xa0;in current assets relating to existing standby letters of credit with varying maturity dates and expire <em style="font: inherit;">no</em> later than <em style="font: inherit;"> September 30, 2022&#xa0;</em>and $<ix:nonFraction id="c78771468" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">270</ix:nonFraction>&#xa0;in long-term assets will remain through the expiration dates of the underlying standby letter of credits (the latest maturity date is <em style="font: inherit;"> February 1, 2023) </em>with BMO Harris Bank N.A. Refer to Note <em style="font: inherit;">10</em>&#xa0;Debt Financing for further information on the Cash Collateral Security agreement with BMO Harris Bank N.A.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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    <table class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30,</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30,</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cash and cash equivalents</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771478" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">35,161</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771479" contextRef="i_2020-09-30" unitRef="USD" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">9,418</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Restricted cash included in current assets</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771480" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">891</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771481" contextRef="i_2020-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,025</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Restricted cash included in long-term assets</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771482" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">270</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771483" contextRef="i_2020-09-30" unitRef="USD" name="us-gaap:RestrictedCashAndCashEquivalentsNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">367</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771484" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" format="ixt:numdotdecimal" decimals="-3">36,322</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771485" contextRef="i_2020-09-30" unitRef="USD" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" format="ixt:numdotdecimal" decimals="-4">11,810</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td></tr>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p></ix:nonNumeric><p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0"></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b></b></p><ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:LesseeLeasesPolicyTextBlock" id="c78773609" escape="true"><p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Leases</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The Company applies the provisions of Accounting Standards Codification ("ASC") <em style="font: inherit;">842,</em>&#xa0;Leases.&#xa0; The Company determines if an arrangement is a lease at inception by evaluating whether the arrangement conveys the right to use an identified asset and whether the Company obtains substantially all of the economic benefits from and has the ability to direct the use of the asset. Right-of-use ("ROU") assets and lease liabilities are recognized at the lease commencement date based on the present value of the future minimum lease payments over the lease term. Operating ROU assets also include the impact of any lease incentives. Operating leases are included in right-of-use operating lease assets, operating lease liabilities - current, and operating lease liabilities - non-current on our Condensed Consolidated Balance Sheets.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do <em style="font: inherit;">not</em> provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms <em style="font: inherit;"> may </em>include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We have lease agreements with lease and non-lease components, and we elected the practical expedient to <em style="font: inherit;">not</em> separate lease and non-lease components for the majority of our leases. For certain equipment leases, such as vehicles, we account for the lease and non-lease components as a single lease component. We also elected the practical expedient to keep leases with an initial term of <em style="font: inherit;">12</em> months or less off of the Condensed Consolidated Balance Sheet.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">3.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Revenue</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The Company recognizes revenue when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Fuel Tech&#x2019;s sales of products to customers generally represent single performance obligations. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is <em style="font: inherit;">not</em> separately identifiable from other promises in the contracts and, therefore, <em style="font: inherit;">not</em> distinct. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Sales, value add, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
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       <em style="font: inherit;">7</em>
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We generally expense sales commissions on a ratable basis when incurred because the amortization period would have been <em style="font: inherit;">one</em> year or less. These costs are recorded within selling, general and administrative expenses within the Condensed Consolidated Statements of Operations.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>&#xa0;</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Air Pollution Control Technology</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech&#x2019;s Air Pollution Control (&#x201c;APC&#x201d;) contracts are typically <span style="-sec-ix-hidden:c78771491">six</span> to <span style="-sec-ix-hidden:c78771492">eighteen</span> months in length. A typical contract will have <em style="font: inherit;">three</em> or <em style="font: inherit;">four</em> critical operational measurements that, when achieved, serve as the basis for us to invoice the customer via progress billings. At a minimum, these measurements will include the generation of engineering drawings, the shipment of equipment and the completion of a system performance test.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">As part of most of its contractual APC project agreements, Fuel Tech will agree to customer-specific acceptance criteria that relate to the operational performance of the system that is being sold. These criteria are determined based on modeling that is performed by Fuel Tech personnel, which is based on operational inputs that are provided by the customer. The customer will warrant that these operational inputs are accurate as they are specified in the binding contractual agreement. Further, the customer is solely responsible for the accuracy of the operating condition information; typically all performance guarantees and equipment warranties granted by us are voidable if the operating condition information is inaccurate or is <em style="font: inherit;">not</em> met.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Since control transfers over time, revenue is recognized based on the extent of progress towards completion of the single performance obligation. Fuel Tech uses the cost-to-cost input measure of progress for our contracts since it best depicts the transfer of assets to the customer which occurs as we incur costs on our contracts. Under the cost-to-cost input measure of progress, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recorded proportionally as costs are incurred. Costs to fulfill include all internal and external engineering costs, equipment charges, inbound and outbound freight expenses, internal and site transfer costs, installation charges, purchasing and receiving costs, inspection costs, warehousing costs, project personnel travel expenses and other direct and indirect expenses specifically identified as project- or product-line related, as appropriate (e.g. test equipment depreciation and certain insurance expenses).</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Fuel Tech&#x2019;s APC product line also includes ancillary revenue for post contractual goods and services.&#xa0; Revenue associated with these activities are recognized at point in time when delivery of goods or completion of the service obligation is performed.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech has installed over <ix:nonFraction id="c78771496" contextRef="i_2021-09-30" unitRef="Pure" name="ftek:NumberOfUnitsInstalled" scale="0" format="ixt:numdotdecimal" decimals="INF">1,200</ix:nonFraction> units with APC technology and normally provides performance guarantees to our customers based on the operating conditions for the project. As part of the project implementation process, we perform system start-up and optimization services that effectively serve as a test of actual project performance. We believe that this test, combined with the accuracy of the modeling that is performed, enables revenue to be recognized prior to the receipt of formal customer acceptance.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>FUEL CHEM</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>&#xa0;</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Revenues from the sale of chemical products are recognized when control transfers to customer upon shipment or delivery of the product based on the applicable shipping terms. We generally recognize revenue for these arrangements at a point in time based on our evaluation of when the customer obtains control of the promised goods or services.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">On occasion, Fuel Tech will engineer and sell its chemical pumping equipment.&#xa0; These projects are similar in nature to the APC projects described above and for those project where control transfers over time,&#xa0;revenue is recognized&#xa0;based on the extent of progress towards completion of the single performance obligation.&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">For projects containing multiple performance obligations, the Company allocates the transaction price based on the estimated standalone selling price. The Company must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. The Company utilizes key assumptions to determine the stand-alone selling price, which <em style="font: inherit;"> may </em>include other comparable transactions, pricing considered in negotiating the transaction and the estimated costs. Variable consideration is allocated specifically to <em style="font: inherit;">one</em> or more performance obligations in a contract when the terms of the variable consideration relate to the satisfaction of the performance obligation and the resulting amounts allocated are consistent with the amounts the Company would expect to receive for the satisfaction of each performance obligation.</p>
   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">The consideration allocated to each performance obligation is recognized as revenue when control is transferred for the related goods or services. For performance obligations which consist of licenses and other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.</p>
   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">The Company receives payments from its customers based on billing schedules established in each contract. Up-front payments and fees are recorded as deferred revenue upon receipt or when due until the Company performs its obligations under these arrangements. Amounts are recorded as accounts receivable when the Company&#x2019;s right to consideration is unconditional.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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       <em style="font: inherit;">8</em>
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Disaggregated Revenue by Product Technology</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table presents our revenues disaggregated by product technology:</p>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Air Pollution Control</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Technology solutions</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771538" contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,172</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771539" contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">2,326</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771540" contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,768</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771541" contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">4,524</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Spare parts</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771542" contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">407</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771543" contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">254</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771544" contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">823</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771545" contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">667</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Ancillary revenue</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771546" contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">365</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771547" contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">306</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771548" contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,246</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771549" contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">828</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Air Pollution Control Technology revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771550" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,944</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771551" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">2,886</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771552" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">3,837</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771553" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,019</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>FUEL CHEM</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">FUEL CHEM technology solutions</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771555" contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">5,615</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771556" contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">5,269</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771557" contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">13,973</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771558" contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">10,315</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771559" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">7,559</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771560" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">8,155</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771561" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">17,810</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771562" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,334</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Disaggregated Revenue by Geography</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table presents our revenues disaggregated by geography, based on the billing addresses of our customers:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:RevenueFromExternalCustomersByGeographicAreasTableTextBlock" id="c1981254" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">United States</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771575" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,049</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771576" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,473</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771577" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-5">15,100</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771578" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">12,880</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Foreign Revenues</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Latin America</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771580" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-LatinAmericaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">121</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771581" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-LatinAmericaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">195</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771582" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-LatinAmericaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">338</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771583" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-LatinAmericaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-5">400</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Europe</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771584" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-EuropeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">663</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771585" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-EuropeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">904</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771586" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-EuropeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,339</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771587" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-EuropeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,494</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Asia</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771588" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-AsiaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">726</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771589" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-AsiaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">583</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771590" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-AsiaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,033</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771591" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-AsiaMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">1,560</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Foreign Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771592" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">1,510</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771593" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,682</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771594" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">2,710</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771595" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">3,454</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771596" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">7,559</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771597" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">8,155</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771598" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">17,810</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771599" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,334</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Timing of Revenue Recognition</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table presents the timing of our revenue recognition:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock" id="c1981255" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Products transferred at a point in time</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771612" contextRef="d_2021-07-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,387</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771613" contextRef="d_2020-07-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">5,108</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771614" contextRef="d_2021-01-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,042</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771615" contextRef="d_2020-01-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">11,089</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Products and services transferred over time</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771616" contextRef="d_2021-07-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,172</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771617" contextRef="d_2020-07-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">3,047</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771618" contextRef="d_2021-01-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,768</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771619" contextRef="d_2020-01-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">5,245</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771620" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">7,559</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771621" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">8,155</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771622" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">17,810</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771623" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,334</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">9</em>
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    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
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   </ix:exclude>
   <ix:exclude>&#xa0;</ix:exclude>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Contract Balances</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the consolidated balance sheets. In our Air Pollution Control Technology segment, amounts are billed as work progresses in accordance with agreed-upon contractual terms. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. For the FUEL CHEM technology segment, deliveries made in the current period but billed in subsequent periods are also considered unbilled receivables (contract assets).&#xa0; These assets are reported on the&#xa0;consolidated balance sheet on a contract-by-contract basis at the end of each reporting period. &#xa0;At <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, 2020</em>, contract assets for APC technology projects were approximately $<ix:nonFraction id="c78771500" contextRef="i_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:ContractWithCustomerAssetNet" scale="3" format="ixt:numdotdecimal" decimals="-3">375</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78771501" contextRef="i_2020-12-31_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:ContractWithCustomerAssetNet" scale="3" format="ixt:numdotdecimal" decimals="-4">2,080</ix:nonFraction>, respectively, and $<ix:nonFraction id="c78771502" contextRef="i_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:ContractWithCustomerAssetNet" scale="3" format="ixt:numdotdecimal" decimals="-3">0</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78771503" contextRef="i_2020-12-31_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:ContractWithCustomerAssetNet" scale="3" format="ixt:numdotdecimal" decimals="-3">269</ix:nonFraction>, respectively, for the FUEL CHEM technology segment, and are included in accounts receivable on the condensed consolidated balance sheets.&#xa0;&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">However, the Company will periodically bill in advance of costs incurred before revenue is recognized, resulting in contract liabilities. These liabilities are reported on the consolidated balance sheet on a contract-by-contract basis at the end of each reporting period. Contract liabilities were $<ix:nonFraction id="c78771504" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,246</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78771505" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">850</ix:nonFraction>, at <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, 2020</em>, respectively, and are included in other accrued liabilities on the consolidated balance sheets.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Changes in the contract asset and liability balances during the&#xa0;<em style="font: inherit;">nine</em> month period ended <em style="font: inherit;"> September 30, 2021</em>, were <em style="font: inherit;">not</em> materially impacted by any other items other than amounts billed and revenue recognized as described previously. Revenue recognized that was included in the contract liability balance at the beginning of the period was $<ix:nonFraction id="c78771508" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" scale="3" format="ixt:numdotdecimal" decimals="-3">173</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78771509" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" scale="3" format="ixt:numdotdecimal" decimals="-3">331</ix:nonFraction>&#xa0;for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em>, and $<ix:nonFraction id="c78771512" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" scale="3" format="ixt:numdotdecimal" decimals="-3">97</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78771513" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityRevenueRecognized" scale="3" format="ixt:numdotdecimal" decimals="-3">555</ix:nonFraction>&#xa0;for <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2020</em>, which represented primarily revenue from progress towards completion of our Air Pollution Control technology contracts.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">As of <em style="font: inherit;"> September 30, 2021</em>, we had <ix:nonFraction id="c78771516" contextRef="i_2021-09-30" unitRef="Pure" name="ftek:ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts" scale="0" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> construction contracts in progress that were identified as a loss contract. As of <em style="font: inherit;"> December 31, 2020</em>, we had <ix:nonFraction id="c78771517" contextRef="i_2020-12-31" unitRef="Pure" name="ftek:ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts" scale="0" format="ixt-sec:numwordsen" decimals="INF">one</ix:nonFraction> construction contract in progress that was identified as a loss contract&#xa0;and a provision for losses in the amount of $<ix:nonFraction id="c78771518" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:ProvisionForLossOnContracts" scale="3" format="ixt:numdotdecimal" decimals="-3">176</ix:nonFraction>&#xa0;was recorded in other accrued liabilities on the consolidated balance sheet.&#xa0;Refer to Footnote <em style="font: inherit;">14</em>&#xa0;for an accrual related to an equipment failure&#xa0;issue&#xa0;with a Customer that requires remedy under the warranty provision of the customer contract.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Remaining Performance Obligations</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Remaining performance obligations represents the transaction price of Air Pollution Control technology booked orders for which work has <em style="font: inherit;">not</em> been performed. As of <em style="font: inherit;"> September 30, 2021</em>, the aggregate amount of the transaction price allocated to remaining performance obligations was $<ix:nonFraction id="c78771521" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:RevenueRemainingPerformanceObligation" scale="3" format="ixt:numdotdecimal" decimals="-3">8,173</ix:nonFraction>. The Company expects to recognize revenue on approximately $<ix:nonFraction id="c78771522" contextRef="i_2021-09-30_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis-RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain-2021-10-01" unitRef="USD" name="us-gaap:RevenueRemainingPerformanceObligation" scale="3" format="ixt:numdotdecimal" decimals="-3">5,517</ix:nonFraction>&#xa0;of the remaining performance obligations over the next <ix:nonNumeric contextRef="i_2021-09-30_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis-RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain-2021-10-01" name="us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1" id="c78771523" format="ixt-sec:durmonth">12</ix:nonNumeric> months with the remaining recognized thereafter.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>&#xa0;</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Accounts Receivable</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>&#xa0;</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">The components of accounts receivable are as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" id="c1981256" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30, 2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Trade receivables</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771628" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccountsReceivableGrossCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">5,423</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771629" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccountsReceivableGrossCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">5,015</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Unbilled receivables</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771630" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:UnbilledReceivablesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">375</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771631" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:UnbilledReceivablesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">2,348</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other short-term receivables</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771632" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccountsAndOtherReceivablesNetCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">102</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771633" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccountsAndOtherReceivablesNetCurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">20</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Allowance for doubtful accounts</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771634" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AllowanceForDoubtfulAccountsReceivable" scale="3" format="ixt:numdotdecimal" decimals="-3">838</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771635" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AllowanceForDoubtfulAccountsReceivable" scale="3" format="ixt:numdotdecimal" decimals="-3">835</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total accounts receivable</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771636" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccountsReceivableNetCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">5,062</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771637" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccountsReceivableNetCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">6,548</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
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   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">10</em>
      </div>
     </div>
    </div>
    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
    <div class="PGHDR" style="text-align: left; width: 100%">
     <div class="hf-row">
      <div class="hf-cell TOCLink" style="display: inline-block; text-align: left;">
       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
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   </ix:exclude>
   <ix:exclude>&#xa0;</ix:exclude>
  </ix:nonNumeric>
  <div>
    &#xa0;
  </div>
  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock" id="c1981257" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">4.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Restructuring Activities</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><i>&#xa0;</i></b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">On <em style="font: inherit;"> January 18, 2019, </em>the Company announced a planned suspension of its Air Pollution Control (&#x201c;APC&#x201d;) business operation in China. This action was part of Fuel Tech&#x2019;s ongoing operational improvement initiatives designed to prioritize resource allocation, reduce costs, and drive profitability for the Company on a global basis. The transition associated with the suspension of the APC business which has taken place through <em style="font: inherit;"> September 30, 2021</em> includes staff rationalization and reduction, supplier and partner engagement, and the monetization of certain assets. The remaining transition activities include the execution of the activities to satisfy the requirements for the remaining APC projects in China (with a backlog totaling approximately $<ix:nonFraction id="c78771639" contextRef="i_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="ftek:DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount" scale="3" format="ixt:numdotdecimal" decimals="-4">10</ix:nonFraction>) in addition to collection efforts for the remaining accounts receivable.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The following table presents our revenues and net income (loss) which includes the Restructuring charge line item within the Condensed Statements of Operations for&#xa0;<em style="font: inherit;">2021</em> and <em style="font: inherit;">2020</em> in China as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock" id="c0ACADA6F-4A83-4766-95F0-3D140A498028" escape="true" continuedAt="c87353F7C-82B8-4807-B919-6CC680D10C11">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total revenues</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771656" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">2</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771657" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771658" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">17</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771659" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">11</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Net loss</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771660" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">47</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771661" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">73</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771662" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">85</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771663" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:NetIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">31</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Total assets primarily consist of cash, accounts receivable, contract assets, prepaid expenses and other current assets. Total liabilities consist of accounts payable and certain accrued liabilities.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The following table presents net assets in China as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:continuation id="c87353F7C-82B8-4807-B919-6CC680D10C11">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30, 2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total assets</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771668" contextRef="i_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:Assets" scale="3" format="ixt:numdotdecimal" decimals="-3">1,444</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771669" contextRef="i_2020-12-31_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:Assets" scale="3" format="ixt:numdotdecimal" decimals="-3">2,463</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total liabilities</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771670" contextRef="i_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:Liabilities" scale="3" format="ixt:numdotdecimal" decimals="-4">290</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771671" contextRef="i_2020-12-31_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:Liabilities" scale="3" format="ixt:numdotdecimal" decimals="-3">396</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total net assets</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771672" contextRef="i_2021-09-30_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:AssetsNet" scale="3" format="ixt:numdotdecimal" decimals="-3">1,154</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771673" contextRef="i_2020-12-31_StatementGeographicalAxis-CN" unitRef="USD" name="us-gaap:AssetsNet" scale="3" format="ixt:numdotdecimal" decimals="-3">2,067</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
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     </tbody>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">11</em>
      </div>
     </div>
    </div>
    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
    <div class="PGHDR" style="text-align: left; width: 100%">
     <div class="hf-row">
      <div class="hf-cell TOCLink" style="display: inline-block; text-align: left;">
       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
     </div>
    </div>
   </ix:exclude>
   <ix:exclude>&#xa0;</ix:exclude>
  </ix:nonNumeric>
  <div>
    &#xa0;
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  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ComprehensiveIncomeNoteTextBlock" id="c1981260" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">5.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Accumulated Other Comprehensive Loss</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The changes in accumulated other comprehensive loss by component were as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" id="c1981261" escape="true">
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     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Foreign currency translation</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#xa0;</b></td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Balance at beginning of period</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771691" contextRef="i_2021-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">1,430</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771692" contextRef="i_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,857</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771693" contextRef="i_2020-12-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">1,370</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771694" contextRef="i_2019-12-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,778</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other comprehensive income (loss):</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Foreign currency translation adjustments (1)</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771696" contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">153</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771697" contextRef="d_2020-07-01_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" format="ixt:numdotdecimal" decimals="-3">268</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771698" contextRef="d_2021-01-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">213</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771699" contextRef="d_2020-01-01_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" scale="3" format="ixt:numdotdecimal" decimals="-3">189</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total accumulated other comprehensive loss</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771700" contextRef="i_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,583</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771701" contextRef="i_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,589</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771702" contextRef="i_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,583</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771703" contextRef="i_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember" unitRef="USD" name="us-gaap:StockholdersEquity" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,589</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;">(<em style="font: inherit;">1</em>)</p>
   <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;">In all periods presented, there were <em style="font: inherit;">no</em> tax impacts related to rate changes and <em style="font: inherit;">no</em> amounts were reclassified to earnings.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:36pt;margin-right:0pt;margin-top:0pt;text-align:justify;">&#xa0;</p>
  </ix:nonNumeric>
  <div>
    &#xa0;
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  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:TreasuryStockTextBlock" id="c1981262" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">6.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Treasury Stock</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Common stock held in treasury totaled <ix:nonFraction id="c78771705" contextRef="i_2021-09-30" unitRef="Share" name="us-gaap:TreasuryStockShares" scale="0" format="ixt:numdotdecimal" decimals="INF">963,509</ix:nonFraction>&#xa0;and <ix:nonFraction id="c78771706" contextRef="i_2020-12-31" unitRef="Share" name="us-gaap:TreasuryStockShares" scale="0" format="ixt:numdotdecimal" decimals="INF">948,347</ix:nonFraction>&#xa0;with a cost of $<ix:nonFraction id="c78771707" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:TreasuryStockValue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,234</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78771708" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:TreasuryStockValue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,182</ix:nonFraction>&#xa0;at <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, 2020</em>, respectively. These shares were withheld from employees to settle personal tax withholding obligations that arose as a result of restricted stock units that vested in the periods presented.</p>
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  <div>
    &#xa0;
  </div>
  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:EarningsPerShareTextBlock" id="c1981263" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">7.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Earnings per Share</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Basic earnings per share excludes the dilutive effects of stock options, restricted stock units (RSUs), warrants, and the <em style="font: inherit;">nil</em> coupon non-redeemable convertible unsecured loan notes. Diluted earnings per share includes the dilutive effect of the <em style="font: inherit;">nil</em> coupon non-redeemable convertible unsecured loan notes, RSUs, warrants, and unexercised in-the-money stock options, except in periods of net loss where the effect of these instruments is anti-dilutive. Out-of-money stock options and warrants are excluded from diluted earnings per share because they are anti-dilutive.&#xa0;&#xa0;For the <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2020,&#xa0;</em>basic earnings per share is equal to diluted earnings per share because all outstanding stock awards and convertible loan notes are considered anti-dilutive during periods of net loss.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table sets forth the weighted-average shares used in calculating the earnings per share for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" id="c1981264" escape="true">
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     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Basic weighted-average shares</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771732" contextRef="d_2021-07-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">30,264,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771733" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">24,701,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771734" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">29,356,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771735" contextRef="d_2020-01-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="0" format="ixt:numdotdecimal" decimals="INF">24,656,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Conversion of unsecured loan notes</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771736" contextRef="d_2021-07-01_2021-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771737" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771738" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771739" contextRef="d_2020-01-01_2020-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToConversionOfDebtSecurities" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Unexercised options and unvested RSUs</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771740" contextRef="d_2021-07-01_2021-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" scale="0" format="ixt:numdotdecimal" decimals="INF">71,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771741" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" scale="0" format="ixt:numdotdecimal" decimals="INF">419,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771742" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" scale="0" format="ixt:numdotdecimal" decimals="INF">126,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771743" contextRef="d_2020-01-01_2020-09-30" unitRef="Share" name="us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Diluted weighted-average shares</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771744" contextRef="d_2021-07-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">30,335,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771745" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">25,120,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771746" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">29,482,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771747" contextRef="d_2020-01-01_2020-09-30" unitRef="Share" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">24,656,000</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">For the <em style="font: inherit;">nine</em> month period ended <em style="font: inherit;"> September 30, 2020, </em>Fuel Tech had <ix:nonFraction id="c78771718" contextRef="d_2020-07-01_2020-09-30" unitRef="Share" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="0" format="ixt:numdotdecimal" decimals="INF">520,000</ix:nonFraction>&#xa0;outstanding equity awards&#xa0;that were excluded from&#xa0;the&#xa0;computation&#xa0;of&#xa0;diluted&#xa0;EPS&#xa0;as&#xa0;the inclusion&#xa0;of&#xa0;such&#xa0;would&#xa0;have&#xa0;been&#xa0;anti-dilutive due to a net loss in the period.</p>
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       <em style="font: inherit;">12</em>
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">8.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Stock-Based Compensation</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Under our stock-based employee compensation plan, referred to as the Fuel Tech, Inc. <em style="font: inherit;">2014</em> Long-Term Incentive Plan (Incentive Plan), awards <em style="font: inherit;"> may </em>be granted to participants in the form of Non-Qualified Stock Options, Incentive Stock Options, Stock Appreciation Rights, Restricted Stock, Restricted Stock Units (&#x201c;RSUs&#x201d;), Performance Awards, Bonuses or other forms of share-based or non-share-based awards or combinations thereof. Participants in the Incentive Plan <em style="font: inherit;"> may </em>be our directors, officers, employees, consultants or advisors (except consultants or advisors in capital-raising transactions) as the directors determine are key to the success of our business. There are a maximum of <ix:nonFraction id="c78771750" contextRef="i_2021-09-30_PlanNameAxis-The2014LongTermIncentivePlanMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" scale="0" format="ixt:numdotdecimal" decimals="INF">5,600,676</ix:nonFraction>&#xa0;shares that <em style="font: inherit;"> may </em>be issued or reserved for awards to participants under the Incentive Plan. As of <em style="font: inherit;"> September 30, 2021</em>, Fuel Tech had <ix:nonFraction id="c78771751" contextRef="i_2021-09-30_PlanNameAxis-The2014LongTermIncentivePlanMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" scale="0" format="ixt:numdotdecimal" decimals="INF">2,603,801</ix:nonFraction>&#xa0;shares available for share-based awards under the <em style="font: inherit;">2014</em> Plan.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We did <span style="-sec-ix-hidden:c78771753"><span style="-sec-ix-hidden:c78771754">not</span></span> record any excess tax benefits within income tax expense for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em>. Given the Company has a full valuation allowance on its deferred tax assets, there were <em style="font: inherit;">no</em> excess tax benefits to record for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em>. In addition, we account for forfeitures of awards based on an estimate of the number of awards expected to be forfeited and adjusting the estimate when it is <em style="font: inherit;">no</em> longer probable that the employee will fulfill the service condition.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0; &#xa0;&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Stock-based compensation is included in selling, general, and administrative costs in our Condensed Consolidated Statements of Operations. The components of stock-based compensation for the&#xa0;<em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em> were as follows:</p>
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    <table class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Stock options and restricted stock units, net of forfeited</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771820" contextRef="d_2021-07-01_2021-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">21</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771821" contextRef="d_2020-07-01_2020-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">57</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771822" contextRef="d_2021-01-01_2021-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">61</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771823" contextRef="d_2020-01-01_2020-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">207</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">After-tax effect of stock-based compensation</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771824" contextRef="d_2021-07-01_2021-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">21</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771825" contextRef="d_2020-07-01_2020-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">57</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771826" contextRef="d_2021-01-01_2021-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">61</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771827" contextRef="d_2020-01-01_2020-09-30_IncomeStatementLocationAxis-SellingGeneralAndAdministrativeExpensesMember" unitRef="USD" name="us-gaap:AllocatedShareBasedCompensationExpenseNetOfTax" scale="3" format="ixt:numdotdecimal" decimals="-3">207</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td></tr>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Stock Options</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Stock options granted to employees under the Incentive Plans have a <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-EmployeeStockOptionMember_PlanNameAxis-The2014LongTermIncentivePlanMember" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" id="c78771764" format="ixt-sec:duryear">10</ix:nonNumeric>-year life and they vest as follows: <ix:nonFraction id="c78771765" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-EmployeeStockOptionMember_PlanNameAxis-The2014LongTermIncentivePlanMember_VestingAxis-ShareBasedCompensationAwardTrancheOneMember" unitRef="Pure" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" scale="-2" format="ixt:numdotdecimal" decimals="1">50</ix:nonFraction>% after the <em style="font: inherit;">second</em> anniversary of the award date, <ix:nonFraction id="c78771767" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-EmployeeStockOptionMember_PlanNameAxis-The2014LongTermIncentivePlanMember_VestingAxis-ShareBasedCompensationAwardTrancheTwoMember" unitRef="Pure" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" scale="-2" format="ixt:numdotdecimal" decimals="2">25</ix:nonFraction>% after the <em style="font: inherit;">third</em> anniversary, and the final <ix:nonFraction id="c78771769" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-EmployeeStockOptionMember_PlanNameAxis-The2014LongTermIncentivePlanMember_VestingAxis-ShareBasedCompensationAwardTrancheThreeMember" unitRef="Pure" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" scale="-2" format="ixt:numdotdecimal" decimals="2">25</ix:nonFraction>% after the <em style="font: inherit;">fourth</em> anniversary of the award date. Fuel Tech calculates stock compensation expense for employee option awards based on the grant date fair value of the award, less expected annual forfeitures, and recognizes expense on a straight-line basis over the <em style="font: inherit;">four</em>-year service period of the award. Stock options granted to members of our board of directors vest immediately. Stock compensation for these awards is based on the grant date fair value of the award and is recognized in expense immediately.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech uses the Black-Scholes option pricing model to estimate the grant date fair value of employee stock options. The principal variable assumptions utilized in valuing options and the methodology for estimating such model inputs include: (<em style="font: inherit;">1</em>)&#xa0;risk-free interest rate &#x2013; an estimate based on the yield of zero&#x2013;coupon treasury securities with a maturity equal to the expected life of the option; (<em style="font: inherit;">2</em>)&#xa0;expected volatility &#x2013; an estimate based on the historical volatility of Fuel Tech&#x2019;s Common Stock for a period equal to the expected life of the option; and (<em style="font: inherit;">3</em>)&#xa0;expected life of the option &#x2013; an estimate based on historical experience including the effect of employee terminations.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Stock option activity for Fuel Tech&#x2019;s Incentive Plans for the&#xa0;<em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em> was as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" id="c1981267" escape="true">
    <table class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Weighted- Average</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Number</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Weighted-</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Remaining</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Aggregate</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">of</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Average</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Contractual</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Intrinsic</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Options</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Exercise Price</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Term</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Value</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Outstanding on January 1, 2021</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771844" contextRef="i_2020-12-31" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" scale="0" format="ixt:numdotdecimal" decimals="INF">484,500</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771845" contextRef="i_2020-12-31" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" scale="0" format="ixt:numdotdecimal" decimals="INF">3.57</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Granted</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771848" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771849" contextRef="d_2021-01-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Exercised</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771852" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised" scale="0" format="ixt:zerodash" decimals="INF" sign="-">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771853" contextRef="d_2021-01-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Expired or forfeited</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771856" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" scale="0" format="ixt:numdotdecimal" decimals="INF">50,000</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771857" contextRef="d_2021-01-01_2021-09-30" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" scale="0" format="ixt:numdotdecimal" decimals="INF">8.16</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Outstanding on September 30, 2021</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771860" contextRef="i_2021-09-30" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" scale="0" format="ixt:numdotdecimal" decimals="INF">434,500</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771861" contextRef="i_2021-09-30" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" scale="0" format="ixt:numdotdecimal" decimals="INF">3.05</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" id="c78771862" format="ixt-sec:duryear">3.34</ix:nonNumeric></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771863" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" scale="3" format="ixt:numdotdecimal" decimals="-3">73</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Exercisable on September 30, 2021</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771864" contextRef="i_2021-09-30" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" scale="0" format="ixt:numdotdecimal" decimals="INF">434,500</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771865" contextRef="i_2021-09-30" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" scale="0" format="ixt:numdotdecimal" decimals="INF">3.05</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" id="c78771866" format="ixt-sec:duryear">3.34</ix:nonNumeric></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771867" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" scale="3" format="ixt:numdotdecimal" decimals="-3">73</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
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   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">As of <em style="font: inherit;"> September 30, 2021</em>, there was <ix:nonFraction id="c78771776" contextRef="i_2021-09-30_AwardTypeAxis-EmployeeStockOptionMember_PlanNameAxis-The2014LongTermIncentivePlanMember" unitRef="USD" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> unrecognized compensation cost related to non-vested stock options granted under the Incentive Plans.<br /> &#xa0;</p>
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       <em style="font: inherit;">13</em>
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Restricted Stock Units</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Restricted stock units (RSUs) granted to employees vest over time based on continued service (typically vesting over a period between <span style="-sec-ix-hidden:c78771778">two</span> and <span style="-sec-ix-hidden:c78771779">four</span> years). Such time-vested RSUs are valued at the date of grant using the intrinsic value method based on the closing price of the Common Shares on the grant date. Compensation cost, adjusted for estimated forfeitures, is amortized on a straight-line basis over the requisite service period.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">In addition to the time vested RSUs, the Company entered into a <em style="font: inherit;">2021</em>&#xa0;Executive Performance RSU Award Agreement (the <em style="font: inherit;">&#x201c;2021</em> Agreement&#x201d;) with certain officers, including its President and Chief Executive Officer pursuant to which each <em style="font: inherit;">2021</em>&#xa0;Participating Executive will have the opportunity to earn a specified amount of restricted stock units (RSUs). The amount of RSUs awarded, if any, will be based on the Company&#x2019;s achievement of varying levels of operating income before the impact of incentive pay (but including adjustments to reflect the payment of sales commissions) in fiscal <em style="font: inherit;">2021</em>&#xa0;(&#x201c;Operating Income&#x201d;), as determined by the Company, in its sole discretion. Nevertheless, <em style="font: inherit;">no</em> Participating Executive will be entitled to any such RSUs unless the Company achieves a minimum of $<ix:nonFraction id="c78771785" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember_PlanNameAxis-The2014LongTermIncentivePlanMember" unitRef="USD" name="ftek:ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome" scale="6" format="ixt:numdotdecimal" decimals="-6">1</ix:nonFraction> million in Operating Income in <em style="font: inherit;">2021.</em> If awarded, such RSUs will vest in equal amounts (<i>i.e.,</i>&#xa0;<span style="-sec-ix-hidden:c78771787">1/3,</span> <span style="-sec-ix-hidden:c78771788">1/3</span> and <span style="-sec-ix-hidden:c78771789">1/3</span>) over <span style="-sec-ix-hidden:c78771790">three</span> years commencing <em style="font: inherit;">one</em> year after the grant date based on continued service. Such RSUs are valued at the date of grant based on the closing price of the Company&#x2019;s common stock on the grant date. Currently there is <em style="font: inherit;">no</em> expense reflected in the financial statements for these awards as the achievement is <em style="font: inherit;">not</em> considered probable.&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">At&#xa0;<em style="font: inherit;"> September 30, 2021</em>, there is $<ix:nonFraction id="c78771794" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" scale="3" format="ixt:numdotdecimal" decimals="-3">39</ix:nonFraction>&#xa0;of unrecognized compensation cost related to all non-vested share-based compensation arrangements granted under the Incentive Plan. That cost is expected to be recognized over the remaining requisite service period of <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="c78771795" format="ixt-sec:duryear">0.47</ix:nonNumeric>&#xa0;years.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">A summary of restricted stock unit activity for the&#xa0;<em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em> is as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock" id="c1981268" escape="true">
    <table class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;" cellspacing="0" cellpadding="0" border="0"><tbody><tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Weighted Average</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Grant Date</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Shares</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Fair Value</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Unvested restricted stock units at January 1, 2021</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771874" contextRef="i_2020-12-31_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" scale="0" format="ixt:numdotdecimal" decimals="INF">100,005</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771875" contextRef="i_2020-12-31_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" scale="0" format="ixt:numdotdecimal" decimals="INF">4.08</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Granted</p> </td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771876" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td><td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771877" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td><td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Forfeited</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771878" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" scale="0" format="ixt:numdotdecimal" decimals="INF">5,000</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771879" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" scale="0" format="ixt:numdotdecimal" decimals="INF">0.97</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Vested</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771880" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" scale="0" format="ixt:numdotdecimal" decimals="INF">50,002</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771881" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" scale="0" format="ixt:numdotdecimal" decimals="INF">1.50</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td></tr>
<tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Unvested restricted stock units at September 30, 2021</p> </td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771882" contextRef="i_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="Share" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" scale="0" format="ixt:numdotdecimal" decimals="INF">45,003</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td><td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771883" contextRef="i_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember" unitRef="USDPerShare" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" scale="0" format="ixt:numdotdecimal" decimals="INF">7.29</ix:nonFraction></td><td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td></tr>
</tbody></table>
   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The fair value of restricted stock that vested during the&#xa0;<em style="font: inherit;">nine</em> month period ending <em style="font: inherit;"> September 30, 2021</em> was $<ix:nonFraction id="c78771798" contextRef="d_2021-01-01_2021-09-30_AwardTypeAxis-RestrictedStockUnitsRSUMember_PlanNameAxis-The2014LongTermIncentivePlanMember" unitRef="USD" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" scale="3" format="ixt:numdotdecimal" decimals="-3">75</ix:nonFraction>.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Deferred Directors Fees</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">In addition to the Incentive Plans, Fuel Tech has a Deferred Compensation Plan for Directors (Deferred Plan). Under the terms of the Deferred Plan, Directors can elect to defer Directors&#x2019; fees for shares of Fuel Tech Common Stock that are issuable at a future date as defined in the agreement. In accordance with ASC <em style="font: inherit;">718,</em> Fuel Tech accounts for these awards as equity awards as opposed to liability awards. During the <em style="font: inherit;">nine</em>&#xa0;month periods ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>, Fuel Tech recorded <ix:nonFraction id="c78771802" contextRef="d_2021-01-01_2021-09-30_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis-DeferredCompensationPlanForDirectorsMember" unitRef="USD" name="us-gaap:DeferredCompensationArrangementWithIndividualCompensationExpense" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> stock-based compensation expense under the Deferred Plan.</p>
  </ix:nonNumeric>
  <p style="margin: 0pt; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&#xa0;</p>
  <div>
    &#xa0;
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  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="ftek:WarrantsDisclosureTextBlock" id="c1981269" escape="true">
   <p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;"><b><em style="font: inherit;">9.</em>&#xa0; &#xa0; &#xa0; Warrants</b></p>
   <p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt; text-align: left; text-indent: 0pt;  ">On <em style="font: inherit;"> February 11, 2021, </em>Fuel Tech entered into a securities purchase agreement&#xa0;to issue and sell, in a private placement, <ix:nonFraction id="c78771885" contextRef="d_2021-02-11_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="Share" name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" scale="0" format="ixt:numdotdecimal" decimals="INF">5,000,000</ix:nonFraction> shares of Common Stock&#xa0;and <ix:nonFraction id="c78771886" contextRef="d_2021-02-11_2021-02-11_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="Share" name="ftek:ClassOfWarrantOrRightNumberOfWarrantsIssued" scale="0" format="ixt:numdotdecimal" decimals="INF">2,500,000</ix:nonFraction> warrants exercisable for a total of <ix:nonFraction id="c78771887" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" scale="0" format="ixt:numdotdecimal" decimals="INF">2,500,000</ix:nonFraction> shares of Common Stock with an exercise price of $<ix:nonFraction id="c78771888" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="USDPerShare" name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" scale="0" format="ixt:numdotdecimal" decimals="INF">5.10</ix:nonFraction> per Warrant Share, at a purchase price of $<ix:nonFraction id="c78771889" contextRef="i_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="USDPerShare" name="us-gaap:SharesIssuedPricePerShare" scale="0" format="ixt:numdotdecimal" decimals="INF">5.1625</ix:nonFraction> per Share and associated warrant. The gross proceeds to the Company from the Private Placement were&#xa0;$<ix:nonFraction id="c78771890" contextRef="d_2021-02-11_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfPrivatePlacement" scale="3" format="ixt:numdotdecimal" decimals="-3">25,812</ix:nonFraction>, before deducting placement agent fees and offering expenses of $<ix:nonFraction id="c78771891" contextRef="d_2021-02-11_2021-02-11_SubsidiarySaleOfStockAxis-PrivatePlacementMember" unitRef="USD" name="us-gaap:PaymentsOfStockIssuanceCosts" scale="3" format="ixt:numdotdecimal" decimals="-3">1,783</ix:nonFraction>. Subject to certain ownership limitations, the Warrants are immediately exercisable upon issuance and expire on the <span style="-sec-ix-hidden:c78771892">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Warrant Shares for resale.&#xa0; In addition, the Company issued to the placement agent Warrants to purchase up to <ix:nonFraction id="c78771894" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" scale="0" format="ixt:numdotdecimal" decimals="INF">350,000</ix:nonFraction> shares of Common Stock.&#xa0; The Placement Agent Warrants are exercisable at an exercise price of $<ix:nonFraction id="c78771895" contextRef="i_2021-02-11_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" unitRef="USDPerShare" name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" scale="0" format="ixt:numdotdecimal" decimals="INF">6.45</ix:nonFraction>&#xa0;per share of Common Stock and expire on the <span style="-sec-ix-hidden:c78771896">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Shares and the Warrant Shares for resale.</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">&#xa0;</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">Fuel Tech uses the Black-Scholes option pricing model to estimate the grant date fair value of the warrants. The principal variable assumptions utilized in valuing warrants and the methodology for estimating such model inputs are: (<em style="font: inherit;">1</em>)&#xa0;risk-free interest rate of <ix:nonFraction id="c78771899" contextRef="i_2021-02-11_MeasurementInputTypeAxis-MeasurementInputRiskFreeInterestRateMember" unitRef="Pure" name="us-gaap:WarrantsAndRightsOutstandingMeasurementInput" scale="-2" format="ixt:numdotdecimal" decimals="4">0.59</ix:nonFraction>%, an estimate based on the yield of zero&#x2013;coupon treasury securities with a maturity equal to the expected life of the warrant; (<em style="font: inherit;">2</em>)&#xa0;expected volatility of <ix:nonFraction id="c78771901" contextRef="i_2021-02-11_MeasurementInputTypeAxis-MeasurementInputPriceVolatilityMember" unitRef="Pure" name="us-gaap:WarrantsAndRightsOutstandingMeasurementInput" scale="-2" format="ixt:numdotdecimal" decimals="4">94.66</ix:nonFraction>% &#x2013; an estimate based on the historical volatility of Fuel Tech&#x2019;s Common Stock for a period equal to the expected life of the warrant; and (<em style="font: inherit;">3</em>)&#xa0;expected life of the warrant of <span style="-sec-ix-hidden:c78771903">five</span> and <em style="font: inherit;">one</em>-half years based on the term of the warrant.&#xa0;</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">&#xa0;</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">The calculated fair value allocated to the warrants is $<ix:nonFraction id="c78771905" contextRef="i_2021-02-11" unitRef="USD" name="us-gaap:WarrantsAndRightsOutstanding" scale="3" format="ixt:numdotdecimal" decimals="-3">7,337</ix:nonFraction>.&#xa0; This amount has been recorded as Additional paid in capital - warrants and is shown net in the Additional paid in capital line of the condensed consolidated balance sheets.&#xa0;&#xa0;</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">&#xa0;</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">The issuance of warrants to purchase shares of the Company's common stock are summarized as follows:</p>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0px;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="ftek:ScheduleOfWarrantActivityTableTextBlock" id="c1981270" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="vertical-align: bottom; font-family: Times New Roman; font-size: 10pt;">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">Shares</td>
       <td style="padding-bottom: 1px; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"> <p style="font-family: Times New Roman; font-size: 10pt; margin-top: 0px; margin-bottom: 0px;">Outstanding on December 31, 2020</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771907" contextRef="i_2020-12-31" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightOutstanding" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;">
       <td style="font-family: Times New Roman; font-size: 10pt;">Granted</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771908" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="ftek:ClassOfWarrantOrRightNumberOfWarrantsIssued" scale="0" format="ixt:numdotdecimal" decimals="INF">2,850,000</ix:nonFraction></td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;">
       <td style="font-family: Times New Roman; font-size: 10pt;">Exercised</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771909" contextRef="d_2021-01-01_2021-09-30" unitRef="Share" name="ftek:ClassOfWarrantOrRightExercisedDuringPeriod" scale="0" format="ixt:zerodash" decimals="INF">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;">
       <td style="font-family: Times New Roman; font-size: 10pt;">Outstanding as of September 30, 2021</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771910" contextRef="i_2021-09-30" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">2,850,000</ix:nonFraction></td>
       <td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</p>
   <div style="font-size:10pt">
    <div style="font-family:'Times New Roman', Times, serif">
      The following table summarizes information about warrants outstanding and exercisable at
     <em style="font: inherit;"> September 30, 2021</em>:
    </div>
   </div>
   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0px;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" id="c1981271" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="vertical-align: bottom; font-family: Times New Roman; font-size: 10pt;">
       <td colspan="2" style="border-bottom: 1px solid rgb(0, 0, 0); width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;">Range of Exercise Price</td>
       <td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;">Number Outstanding/Exercisable</td>
       <td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="1" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;">Weighted Average Remaining Life in Years</td>
       <td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;">Weighted Average Exercise Price</td>
       <td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;">
       <td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;">$5.10</td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771911" contextRef="i_2021-09-30_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">2,500,000</ix:nonFraction></td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;"><ix:nonNumeric contextRef="d_2021-01-01_2021-09-30_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" name="ftek:ClassOfWarrantOrRightWeightedAverageRemainingLife" id="c78771912" format="ixt-sec:duryear">4.87</ix:nonNumeric></td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">$</td>
       <td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771913" contextRef="i_2021-09-30_ClassOfWarrantOrRightAxis-WarrantsIssuedInConnectionWithPrivatePlacementMember" unitRef="USDPerShare" name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" scale="0" format="ixt:numdotdecimal" decimals="INF">5.10</ix:nonFraction></td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;">
       <td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;">$6.45</td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771914" contextRef="i_2021-09-30_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">350,000</ix:nonFraction></td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;"><ix:nonNumeric contextRef="d_2021-01-01_2021-09-30_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" name="ftek:ClassOfWarrantOrRightWeightedAverageRemainingLife" id="c78771915" format="ixt-sec:duryear">4.87</ix:nonNumeric></td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">$</td>
       <td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771916" contextRef="i_2021-09-30_ClassOfWarrantOrRightAxis-ThePlacementAgentWarrantsMember" unitRef="USDPerShare" name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" scale="0" format="ixt:numdotdecimal" decimals="INF">6.45</ix:nonFraction></td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;">
       <td colspan="2" rowspan="1" style="width: 41%; font-family: Times New Roman; font-size: 10pt;">&#xa0;&#xa0;</td>
       <td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"><ix:nonFraction id="c78771917" contextRef="i_2021-09-30" unitRef="Share" name="us-gaap:ClassOfWarrantOrRightOutstanding" scale="0" format="ixt:numdotdecimal" decimals="INF">2,850,000</ix:nonFraction></td>
       <td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">14</em>
      </div>
     </div>
    </div>
    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
    <div class="PGHDR" style="text-align: left; width: 100%">
     <div class="hf-row">
      <div class="hf-cell TOCLink">
       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
     </div>
    </div>
   </ix:exclude>
   <ix:exclude>&#xa0;</ix:exclude>
  </ix:nonNumeric>
  <div>
    &#xa0;
  </div>
  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:DebtDisclosureTextBlock" id="c1981272" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">10.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Debt Financing</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">On <em style="font: inherit;"> April 17, 2020, </em>the Company received $<ix:nonFraction id="c78771921" contextRef="d_2020-04-17_2020-04-17_DebtInstrumentAxis-PaycheckProtectionProgramCaresActMember" unitRef="USD" name="us-gaap:ProceedsFromIssuanceOfLongTermDebt" scale="3" format="ixt:numdotdecimal" decimals="-3">1,556</ix:nonFraction> in loan proceeds from the Paycheck Protection Program (the &#x201c;PPP&#x201d;), established pursuant to the Coronavirus Aid, Relief, and Economic Security Act (the &#x201c;CARES Act&#x201d;) and administered by the U.S. Small Business Administration (&#x201c;SBA&#x201d;). The unsecured loan is evidenced by a promissory note of the Company dated <em style="font: inherit;"> April 15, 2020 (</em>the &#x201c;Note&#x201d;) in the principal amount of $<ix:nonFraction id="c78771922" contextRef="d_2021-01-08_2021-01-08_DebtInstrumentAxis-PaycheckProtectionProgramCaresActMember" unitRef="USD" name="us-gaap:DebtInstrumentDecreaseForgiveness" scale="3" format="ixt:numdotdecimal" decimals="-3">1,556</ix:nonFraction>, issued to BMO Harris Bank N.A. (the &#x201c;Bank&#x201d;), the lender.&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">On <em style="font: inherit;"> January 8, 2021, </em>the Company received full forgiveness from the SBA for the entire balance of loan proceeds used to&#xa0;fund its qualified payroll&#xa0;expenses. The Company accounts for the PPP Loan as debt in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) <em style="font: inherit;">470,</em> Debt and accrues interest in accordance with the interest method under FASB ASC <em style="font: inherit;">835</em>-<em style="font: inherit;">30.</em>&#xa0; When the loan was forgiven,&#xa0;the Company reduced the non-current liability by the amount forgiven&#xa0;and recorded other income&#xa0;in the Condensed Consolidated Statement of Operations.&#xa0;&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  </ix:nonNumeric>
  <div>
    &#xa0;
  </div>
  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:SegmentReportingDisclosureTextBlock" id="c1981273" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">11.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Business Segment and Geographic Financial Data</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Business Segment Financial Data</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We segregate our financial results into <ix:nonFraction id="c78771928" contextRef="d_2021-01-01_2021-09-30" unitRef="Pure" name="us-gaap:NumberOfReportableSegments" scale="0" format="ixt-sec:numwordsen" decimals="INF">two</ix:nonFraction> reportable segments representing <em style="font: inherit;">two</em> broad technology segments as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;">
    <tbody>
     <tr style="vertical-align: top;">
      <td style="width: 36pt;">&#xa0;</td>
      <td style="width: 18pt;"> <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;">&#x2022;</p> </td>
      <td> <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;">The Air Pollution Control technology segment includes technologies to reduce NOx emissions in flue gas from boilers, incinerators, furnaces and other stationary combustion sources. These include Low and Ultra Low NOx Burners (LNB and ULNB), Over-Fire Air (OFA) systems, NOxOUT<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> and HERT&#x2122; Selective Non-Catalytic Reduction (SNCR) systems, and Advanced Selective Catalytic Reduction (ASCR<sup style="vertical-align:top;line-height:120%;font-size:pt">&#x2122;</sup>) systems. Our ASCR systems include ULNB, OFA, and SNCR components, along with a downsized SCR catalyst, Ammonia Injection Grid (AIG), and Graduated Straightening Grid GSG&#x2122; systems to provide high NOx reductions at significantly lower capital and operating costs than conventional SCR systems. The NOxOUT CASCADE<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> and NOxOUT-SCR<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> processes are more basic, using just SNCR and SCR catalyst components. ULTRA&#x2122; technology creates ammonia at a plant site using safe urea for use with any SCR application. Flue Gas Conditioning systems are chemical injection systems offered in markets outside the U.S. and Canada to enhance electrostatic precipitator and fabric filter performance in controlling particulate emissions.</p> </td>
     </tr>

    </tbody>
   </table>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;">
    <tbody>
     <tr style="vertical-align: top;">
      <td style="width: 36pt;">&#xa0;</td>
      <td style="width: 18pt;"> <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;">&#x2022;</p> </td>
      <td> <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;">The FUEL CHEM<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> technology segment, which uses chemical processes in combination with advanced CFD and CKM boiler modeling, for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in furnaces and boilers through the addition of chemicals into the furnace using TIFI<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> Targeted In-Furnace Injection&#x2122; technology.</p> </td>
     </tr>

    </tbody>
   </table>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The &#x201c;Other&#x201d; classification includes those profit and loss items <em style="font: inherit;">not</em> allocated to either reportable segment. There are <em style="font: inherit;">no</em> inter-segment sales that require elimination.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We evaluate performance and allocate resources based on reviewing gross margin by reportable segment. The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies (Note <em style="font: inherit;">1</em> in our annual report on Form <em style="font: inherit;">10</em>-K). We do <em style="font: inherit;">not</em> review assets by reportable segment, but rather, in aggregate for the Company as a whole.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Information about reporting segment net sales and gross margin from operations are provided below:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock" id="c6B24F343-77A8-4978-8CE0-7A4310BCB583" escape="true" continuedAt="c3CA9DCF0-3704-4F1D-8EC6-12CAA381E70F">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Three months ended September 30, 2021</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771945" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,944</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771946" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">5,615</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771947" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771948" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">7,559</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771949" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">1,134</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771950" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,706</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771951" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771952" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-4">3,840</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771953" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-4">810</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771954" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">2,909</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771955" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771956" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">3,719</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771957" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771958" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771959" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">2,801</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(<ix:nonFraction id="c78771960" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">2,801</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771961" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771962" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771963" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">340</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(<ix:nonFraction id="c78771964" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">340</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771965" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-4">810</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771966" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">2,909</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771967" contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">3,141</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771968" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">578</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
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     </tbody>
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   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <ix:continuation id="c3CA9DCF0-3704-4F1D-8EC6-12CAA381E70F" continuedAt="E5AE0943-08C2-443C-B574-B2A4C8727493">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Three months ended September 30, 2020</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771977" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">2,886</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771978" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">5,269</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771979" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771980" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">8,155</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771981" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">304</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771982" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,553</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78771983" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771984" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,249</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771985" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-4">3,190</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771986" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">2,716</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771987" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78771988" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">5,906</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771989" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78771990" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771991" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">3,184</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78771992" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">3,184</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771993" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78771994" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771995" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">285</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78771996" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">285</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771997" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-4">3,190</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78771998" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">2,716</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78771999" contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">3,469</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772000" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">2,437</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#xa0;</td>
      </tr>

     </tbody>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">15</em>
      </div>
     </div>
    </div>
    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
    <div class="PGHDR" style="text-align: left; width: 100%">
     <div class="hf-row">
      <div class="hf-cell TOCLink" style="display: inline-block; text-align: left;">
       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
     </div>
    </div>
   </ix:exclude>
   <ix:exclude>&#xa0;</ix:exclude>
   <ix:continuation id="E5AE0943-08C2-443C-B574-B2A4C8727493" continuedAt="c3A524DBA-F239-43B1-9A4A-91B0DFB1B551">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Nine months ended September 30, 2021</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772009" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">3,837</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772010" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">13,973</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772011" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772012" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">17,810</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772013" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,172</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772014" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">6,978</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772015" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772016" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-4">9,150</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772017" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">1,665</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772018" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">6,995</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772019" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772020" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-4">8,660</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772021" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772022" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78772023" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">8,858</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78772024" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">8,858</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772025" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772026" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772027" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">1,070</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772028" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">1,070</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772029" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">1,665</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772030" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">6,995</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78772031" contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">9,928</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(<ix:nonFraction id="c78772032" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">1,268</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
      </tr>

     </tbody>
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   </ix:continuation>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
   <ix:continuation id="c3A524DBA-F239-43B1-9A4A-91B0DFB1B551">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; width: 16px;">&#xa0;</td>
       <td style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; width: 155px;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#xa0;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Nine months ended September 30, 2020</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772041" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,019</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772042" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">10,315</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772043" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772044" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,334</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772045" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">2,782</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772046" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">5,517</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 155px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772047" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772048" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:CostOfRevenue" scale="3" format="ixt:numdotdecimal" decimals="-3">8,299</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772049" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">3,237</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772050" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">4,798</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 155px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772051" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772052" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:GrossProfit" scale="3" format="ixt:numdotdecimal" decimals="-3">8,035</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772053" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772054" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78772055" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">9,825</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78772056" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" format="ixt:numdotdecimal" decimals="-3">9,825</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772057" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772058" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:zerodash" decimals="-3" sign="-">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78772059" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">880</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(<ix:nonFraction id="c78772060" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ResearchAndDevelopmentExpense" scale="3" format="ixt:numdotdecimal" decimals="-4">880</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"><ix:nonFraction id="c78772061" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">3,237</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"><ix:nonFraction id="c78772062" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3">4,798</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772063" contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-3" sign="-">10,705</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772064" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingIncomeLoss" scale="3" format="ixt:numdotdecimal" decimals="-4" sign="-">2,670</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
      </tr>

     </tbody>
    </table>
   </ix:continuation>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Geographic Segment Financial Data</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Information concerning our operations by geographic area is provided below. Revenues are attributed to countries based on the location of the customer. Assets are those directly associated with operations of the geographic area.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock" id="c5F8796D9-C26F-4421-8512-3071536D15A8" escape="true" continuedAt="B6DA729E-23F2-408E-BD65-70B3B2A89D19">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues:</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">United States</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772078" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,049</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772079" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">6,473</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772080" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-5">15,100</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772081" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">12,880</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Foreign</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772082" contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">1,510</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772083" contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">1,682</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772084" contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">2,710</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772085" contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">3,454</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772086" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">7,559</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772087" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">8,155</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772088" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-4">17,810</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772089" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" format="ixt:numdotdecimal" decimals="-3">16,334</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
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   </ix:nonNumeric>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#xa0;</p>
   <ix:continuation id="B6DA729E-23F2-408E-BD65-70B3B2A89D19">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30,</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31,</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Assets:</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">United States</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772095" contextRef="i_2021-09-30_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:NoncurrentAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">46,713</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772096" contextRef="i_2020-12-31_StatementGeographicalAxis-US" unitRef="USD" name="us-gaap:NoncurrentAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">24,524</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">Foreign</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772097" contextRef="i_2021-09-30_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:NoncurrentAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">4,326</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772098" contextRef="i_2020-12-31_StatementGeographicalAxis-NonUsMember" unitRef="USD" name="us-gaap:NoncurrentAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">5,564</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772099" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:NoncurrentAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">51,039</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772100" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:NoncurrentAssets" scale="3" format="ixt:numdotdecimal" decimals="-3">30,088</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
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   </ix:continuation>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">16</em>
      </div>
     </div>
    </div>
    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
    <div class="PGHDR" style="text-align: left; width: 100%">
     <div class="hf-row">
      <div class="hf-cell TOCLink" style="display: inline-block; text-align: left;">
       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
     </div>
    </div>
   </ix:exclude>
   <ix:exclude>&#xa0;</ix:exclude>
  </ix:nonNumeric>
  <div>
    &#xa0;
  </div>
  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:LesseeOperatingLeasesTextBlock" id="c1981280" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">12.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Leases</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Leases</b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">We have <span style="-sec-ix-hidden:c78772102">seven</span> total operating leases which relate to both office space locations and certain office equipment. Our leases have remaining lease terms of <ix:nonNumeric contextRef="i_2021-09-30_RangeAxis-MinimumMember" name="us-gaap:LesseeOperatingLeaseRemainingLeaseTerm" id="c78772103" format="ixt-sec:durmonth">2</ix:nonNumeric>&#xa0;months to <ix:nonNumeric contextRef="i_2021-09-30_RangeAxis-MaximumMember" name="us-gaap:LesseeOperatingLeaseRemainingLeaseTerm" id="c78772104" format="ixt-sec:duryear">4</ix:nonNumeric>&#xa0;years. Our leases do <em style="font: inherit;">not</em> contain any material residual value guarantees or material restricted covenants and we currently have <em style="font: inherit;">no</em> material sublease arrangements. We have <ix:nonFraction id="c78772107" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:FinanceLeaseLiability" scale="0" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> financing leases as defined under ASC <em style="font: inherit;">842.</em></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Total operating lease expense for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>,&#xa0;is as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:LeaseCostTableTextBlock" id="c1981281" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772127" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">44</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772128" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">47</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772129" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">133</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772130" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">157</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Short-term lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772131" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:ShortTermLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">4</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772132" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:ShortTermLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">5</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772133" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ShortTermLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">15</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772134" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:ShortTermLeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">12</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Total lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772135" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:LeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">48</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772136" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:LeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">52</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772137" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:LeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">148</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772138" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:LeaseCost" scale="3" format="ixt:numdotdecimal" decimals="-3">169</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The weighted average remaining lease term was <ix:nonNumeric contextRef="i_2021-09-30" name="us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1" id="c78772112" format="ixt-sec:duryear">2.45</ix:nonNumeric>&#xa0;years as of <em style="font: inherit;"> September 30, 2021</em>. The weighted average discount rate was <ix:nonFraction id="c78772113" contextRef="i_2021-09-30" unitRef="Pure" name="us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent" scale="-2" format="ixt:numdotdecimal" decimals="4">4.55</ix:nonFraction>%&#xa0;as of <em style="font: inherit;"> September 30, 2021</em>.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Remaining maturities of our existing lease liabilities as of <em style="font: inherit;"> September 30, 2021</em> were as follows:</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock" id="c1981282" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Year Ending December 31,</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Operating Leases</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2021 (excluding the nine months ended September 30, 2021)</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772140" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" scale="3" format="ixt:numdotdecimal" decimals="-3">44</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2022</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772141" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" scale="3" format="ixt:numdotdecimal" decimals="-3">132</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2023</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772142" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" scale="3" format="ixt:numdotdecimal" decimals="-3">115</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2024</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772143" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree" scale="3" format="ixt:numdotdecimal" decimals="-3">29</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2025</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772144" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour" scale="3" format="ixt:numdotdecimal" decimals="-3">7</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total lease payments</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772145" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue" scale="3" format="ixt:numdotdecimal" decimals="-3">327</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Less imputed interest</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(<ix:nonFraction id="c78772146" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" scale="3" format="ixt:numdotdecimal" decimals="-3">52</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772147" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">275</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
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   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The following is the balance sheet classification of our existing lease liabilities as of <em style="font: inherit;"> September 30, 2021</em>:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="ftek:OperatingLeaseLiabilitiesTableTextBlock" id="c1981283" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30, 2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease liabilities - current</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772152" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">128</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772153" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">149</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease liabilities - non-current</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772154" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">147</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772155" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">237</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total operating lease liabilities</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772156" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">275</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772157" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">386</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Supplemental cash flow information related to leases, was as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="ftek:LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock" id="c1981284" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cash paid for amounts included in the measurement of lease liabilities</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772170" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeasePayments" scale="3" format="ixt:numdotdecimal" decimals="-4">50</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772171" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingLeasePayments" scale="3" format="ixt:numdotdecimal" decimals="-3">45</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772172" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:OperatingLeasePayments" scale="3" format="ixt:numdotdecimal" decimals="-3">148</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772173" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:OperatingLeasePayments" scale="3" format="ixt:numdotdecimal" decimals="-3">148</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Leased assets obtained in exchange for operating lease liabilities</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772174" contextRef="d_2021-07-01_2021-09-30" unitRef="USD" name="us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">39</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772175" contextRef="d_2020-07-01_2020-09-30" unitRef="USD" name="us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">41</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772176" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">119</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772177" contextRef="d_2020-01-01_2020-09-30" unitRef="USD" name="us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" scale="3" format="ixt:numdotdecimal" decimals="-3">137</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

     </tbody>
    </table>
   </ix:nonNumeric>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
   <ix:exclude>
    <div class="PGFTR" style="text-align: center; width: 100%">
     <div class="hf-row">
      <div class="hf-cell PGNUM" style="text-align: center; font-family: Times New Roman; font-size: 10pt;">
       <em style="font: inherit;">17</em>
      </div>
     </div>
    </div>
    <hr style="page-break-after: always; border: none; width: 100%; height: 2px; color: #000000; background-color: #000000" />
    <div class="PGHDR" style="text-align: left; width: 100%">
     <div class="hf-row">
      <div class="hf-cell TOCLink" style="display: inline-block; text-align: left;">
       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
      </div>
     </div>
    </div>
   </ix:exclude>
   <ix:exclude><b>&#xa0;&#xa0; </b></ix:exclude>
  </ix:nonNumeric>
  <div>
    &#xa0;
  </div>
  <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" id="c1981285" escape="true">
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">13.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Accrued Liabilities</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The components of other accrued liabilities are as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <ix:nonNumeric contextRef="d_2021-01-01_2021-09-30" name="us-gaap:OtherCurrentLiabilitiesTableTextBlock" id="c1981286" escape="true">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30, 2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Contract liabilities (Note 3)</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772183" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,246</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772184" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" format="ixt:numdotdecimal" decimals="-4">850</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Accrued remediation contingency (Note 14)</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"><ix:nonFraction id="c78772185" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:AccruedEnvironmentalLossContingenciesCurrent" scale="3" format="ixt:zerodash" decimals="-3">&#x2014;</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"><ix:nonFraction id="c78772186" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:AccruedEnvironmentalLossContingenciesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">176</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other accrued liabilities</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"><ix:nonFraction id="c78772187" contextRef="i_2021-09-30" unitRef="USD" name="ftek:OtherAccruedLiabilitiesMiscellaneousCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">583</ix:nonFraction></td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"><ix:nonFraction id="c78772188" contextRef="i_2020-12-31" unitRef="USD" name="ftek:OtherAccruedLiabilitiesMiscellaneousCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,073</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#xa0;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total other accrued liabilities</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772189" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:OtherAccruedLiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">1,829</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#xa0;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"><ix:nonFraction id="c78772190" contextRef="i_2020-12-31" unitRef="USD" name="us-gaap:OtherAccruedLiabilitiesCurrent" scale="3" format="ixt:numdotdecimal" decimals="-3">2,099</ix:nonFraction></td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#xa0;</td>
      </tr>

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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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    &#xa0;
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">14.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Commitments and Contingencies</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech is subject to various claims and contingencies related to, among other things, workers compensation, general liability (including product liability), and lawsuits. The Company records liabilities where a contingent loss is probable and can be reasonably estimated. If the reasonable estimate of a probable loss is a range, the Company records the most probable estimate of the loss or the minimum amount when <em style="font: inherit;">no</em> amount within the range is a better estimate than any other amount. The Company discloses a contingent liability even if the liability is <em style="font: inherit;">not</em> probable or the amount is <em style="font: inherit;">not</em> estimable, or both, if there is a reasonable possibility that a material loss <em style="font: inherit;"> may </em>have been incurred.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">From time to time we are involved in litigation with respect to matters arising from the ordinary conduct of our business. In the opinion of management, based upon presently available information, either adequate provision for anticipated costs have been accrued or the ultimate anticipated costs will <em style="font: inherit;">not</em> materially affect our consolidated financial position, results of operations, or cash flows.&#xa0; We do <em style="font: inherit;">not</em> believe we have any pending loss contingencies that are probable or reasonably possible of having a material impact on our consolidated financial position, results of operations or cash flows.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: justify;">During the <em style="font: inherit;">third</em> quarter of <em style="font: inherit;">2020,</em> the Company was notified of an equipment component failure at a foreign customer location.&#xa0; The failure was remedied under the warranty provision of&#xa0;the contract&#xa0;that is&#xa0;in place with the customer and supplier and was completed in the <em style="font: inherit;">third</em> quarter of <em style="font: inherit;">2021.</em>&#xa0;As of <em style="font: inherit;"> September 30, 2021</em>&#xa0;and <em style="font: inherit;"> December 31, </em><em style="font: inherit;">2020</em>, respectively, a charge of $<ix:nonFraction id="c78772200" contextRef="i_2021-09-30_LossContingenciesByNatureOfContingencyAxis-FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember" unitRef="USD" name="us-gaap:LossContingencyAccrualAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">0</ix:nonFraction>&#xa0;and $<ix:nonFraction id="c78772201" contextRef="i_2020-12-31_LossContingenciesByNatureOfContingencyAxis-FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember" unitRef="USD" name="us-gaap:LossContingencyAccrualAtCarryingValue" scale="3" format="ixt:numdotdecimal" decimals="-3">176</ix:nonFraction>&#xa0;was recorded in the other accrued liabilities&#xa0;line of the condensed consolidated balance sheets.&#xa0;&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech issues a standard product warranty with the sale of its products to customers. Our recognition of warranty liability is based primarily on analyses of warranty claims experienced in the preceding years as the nature of our historical product sales for which we offer a warranty are substantially unchanged. This approach provides an aggregate warranty accrual that is historically aligned with actual warranty claims experienced.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">There was <ix:nonFraction id="c78772202" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:StandardProductWarrantyAccrualPeriodIncreaseDecrease" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> change in the warranty liability balance included in the other accrued liabilities line of the Condensed Consolidated Balance Sheets during the <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>. The warranty liability balance was $<ix:nonFraction id="c78772206" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:StandardProductWarrantyAccrual" scale="3" format="ixt:numdotdecimal" decimals="-3">159</ix:nonFraction> at <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, </em><em style="font: inherit;">2020</em>.</p>
  </ix:nonNumeric>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">15.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Income Taxes</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The Company&#x2019;s effective tax rate is approximately <ix:nonFraction id="c78772210" contextRef="d_2021-01-01_2021-09-30" unitRef="Pure" name="us-gaap:EffectiveIncomeTaxRateContinuingOperations" scale="-2" format="ixt:numdotdecimal" decimals="3">3.2</ix:nonFraction>%&#xa0;and (<ix:nonFraction id="c78772211" contextRef="d_2020-01-01_2020-09-30" unitRef="Pure" name="us-gaap:EffectiveIncomeTaxRateContinuingOperations" scale="-2" format="ixt:numdotdecimal" decimals="3" sign="-">5.8</ix:nonFraction>%) for the <em style="font: inherit;">nine</em>-month periods ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>, respectively.&#xa0; The Company's effective tax rate differs from the statutory federal tax rate of <ix:nonFraction id="c78772214" contextRef="d_2021-01-01_2021-09-30" unitRef="Pure" name="us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" scale="-2" format="ixt:numdotdecimal" decimals="2">21</ix:nonFraction>% for the <em style="font: inherit;">nine</em> month period ended <em style="font: inherit;"> September 30, 2021</em> primarily due to a full valuation allowance recorded on our United States, China and Italy deferred tax assets since we cannot anticipate when or if we will have sufficient taxable income to utilize the deferred tax assets in the future. Further, our effective tax rate differs from the statutory federal tax rate due to state taxes, differences between U.S. and foreign tax rates, foreign losses incurred with <em style="font: inherit;">no</em> related tax benefit, non-deductible commissions, and non-deductible meals and entertainment expenses for the <em style="font: inherit;">nine</em> month periods ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>.&#xa0;&#xa0;Income generated in the <em style="font: inherit;">nine</em>&#xa0;months ended <em style="font: inherit;"> September 30, 2021</em> attributed to the gain on forgiveness of the Paycheck Protection Plan loan is&#xa0;tax exempt.&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech had <ix:nonFraction id="c78772220" contextRef="i_2021-09-30" unitRef="USD" name="us-gaap:UnrecognizedTaxBenefits" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> unrecognized tax benefits as of <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, 2020</em>.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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       <em style="font: inherit;">18</em>
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       <a href="#toc" style="font-weight: initial; font-style: initial; font-variant: initial; font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif;">Table of Contents</a>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">16.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Goodwill and Other Intangibles</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Goodwill is allocated among and evaluated for impairment at the reporting unit level, which is defined as an operating segment or <em style="font: inherit;">one</em> level below an operating segment.&#xa0;Fuel Tech has <ix:nonFraction id="c78772228" contextRef="d_2021-01-01_2021-09-30" unitRef="Pure" name="us-gaap:NumberOfReportingUnits" scale="0" format="ixt-sec:numwordsen" decimals="INF">two</ix:nonFraction> reporting units for goodwill evaluation purposes: the FUEL CHEM<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> technology segment and the APC technology segment. There is <ix:nonFraction id="c78772229" contextRef="i_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember" unitRef="USD" name="us-gaap:Goodwill" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> goodwill associated with our APC segment.&#xa0; At both <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, 2020</em>, our entire goodwill balance of $<ix:nonFraction id="c78772230" contextRef="i_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember" unitRef="USD" name="us-gaap:Goodwill" scale="3" format="ixt:numdotdecimal" decimals="-3">2,116</ix:nonFraction>&#xa0;was allocated to the FUEL CHEM<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> technology segment.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Goodwill is allocated to each of our reporting units after considering the nature of the net assets giving rise to the goodwill and how each reporting unit would enjoy the benefits and synergies of the net assets acquired. There were <ix:nonFraction id="c78772232" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:GoodwillImpairmentLoss" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> indications of goodwill impairment in the <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech reviews other intangible assets, which include patent assets, for impairment on a recurring basis or when events or changes in circumstances indicate the carrying amount of an asset <em style="font: inherit;"> may </em><em style="font: inherit;">not</em> be recoverable. In the event that impairment indicators exist, a further analysis is performed and if the sum of the expected undiscounted future cash flows resulting from the use of the asset is less than the carrying amount of the asset, an impairment loss equal to the excess of the asset&#x2019;s carrying value over its fair value is recorded. Management considers historical experience and all available information at the time the estimates of future cash flows are made, however, the actual cash values that could be realized <em style="font: inherit;"> may </em>differ from those that are estimated.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">There were <ix:nonFraction id="c78772237" contextRef="d_2021-01-01_2021-09-30" unitRef="USD" name="us-gaap:ImpairmentOfIntangibleAssetsFinitelived" scale="3" format="ixt-sec:numwordsen" decimals="-3">no</ix:nonFraction> indications of intangible asset impairments for the <em style="font: inherit;">nine</em> month periods ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">17.</em>&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Subsequent Events</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The Company has evaluated subsequent events through the filing of this Quarterly Report on Form <em style="font: inherit;">10</em>-Q, and determined that there have been <em style="font: inherit;">no</em> events that have occurred that would require adjustments to our disclosures in the consolidated financial statements.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">18</em> &#xa0;&#xa0;&#xa0; Liquidity</b></p>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">We continue to monitor our liquidity needs and in response to our continued losses have taken measures to reduce expenses and restructure operations which we feel are necessary to ensure we maintain sufficient working capital and liquidity to operate the business and invest in our future.</p>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">We have experienced continued declines in revenues and recurring losses historically. As a result, we have evaluated our ongoing business needs, and considered the cash requirements of our base business of Air Pollution Control (APC) and Fuel Chem businesses. This evaluation included consideration of the following: a) customer and revenue trends in our APC and Fuel Chem business segments, b) current operating structure and expenditure levels, c) current availability of working capital, and d) support for our research and development initiatives. We continue to monitor our liquidity needs and have taken measures to reduce expenses and restructure operations which we feel are necessary to ensure we maintain sufficient working capital and liquidity to operate the business and invest in our future. We believe our current cash position and net cash flows expected to be generated from operations are adequate to fund planned operations of the Company for the next <em style="font: inherit;">12</em> months.&#xa0;</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>FUEL TECH, INC.</b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a id="mda" title="mda" href="#"></a>Item 2.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Management&#x2019;s Discussion and Analysis of Financial Condition and Results of Operations&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><i>Results of Operations</i></b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Revenues for the three&#xa0;month periods ending September 30, 2021 and 2020 were $7,559&#xa0;and $8,155,&#xa0;respectively, representing a decrease of $596, or 7%, versus the same period last year. For the nine month periods ending September 30, 2021 and 2020&#xa0;revenues were $17,810&#xa0;and $16,334,&#xa0;respectively, representing an increase of $1,476, or 9%, versus the same period last year.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The Air Pollution Control (APC) technology segment generated revenues of $1,944&#xa0;for the three month period&#xa0;ending September 30, 2021, representing a decrease&#xa0;of $942, or 33%, from the prior year amount of $2,886. The APC&#xa0;technology segment generated revenues of $3,837&#xa0;and $6,019&#xa0;for the nine months ended September 30, 2021 and 2020, respectively, representing a decrease&#xa0;of&#xa0;$2,182, or 36%.&#xa0;The&#xa0;decreases&#xa0;in APC revenue were primarily related to timing of project execution and new APC orders announced during 2020 and continuing through the first nine months of 2021. Consolidated APC backlog at September 30, 2021 was $8,173&#xa0;versus backlog at December 31, 2020 of $5,268. Our current backlog consists of U.S. domestic projects totaling $8,029&#xa0;and international projects totaling $144.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The FUEL CHEM<sup style="vertical-align:top;line-height:120%;font-size:pt">&#xae;</sup> technology segment generated revenues of $5,615&#xa0;and $13,973&#xa0;for the three and nine months ended September 30, 2021, respectively, representing increases of $346, or 7%, and $3,658, or 35%, from the same periods in 2020 of $5,269&#xa0;and $10,315, respectively. The increases in FUEL CHEM revenue for the three and nine months ended September 30, 2021 as compared to the same period of the prior year&#xa0;were due to revenue from new accounts, increased&#xa0;demand for&#xa0;power generation, and recovery from extended unscheduled outages and significantly reduced operations impacted by the COVID-19 pandemic in 2020.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Consolidated gross margin percentage for the three&#xa0;month periods ended September 30, 2021 and 2020 were&#xa0;49%&#xa0;and&#xa0;72%, respectively. Gross margin decreased versus the comparable&#xa0;period primarily due to the decrease in the APC gross margin, while FUEL CHEM gross margin&#xa0;remained flat at&#xa0;52%. For the three&#xa0;month periods ended September 30, 2021 and 2020&#xa0;the APC gross margin decreased to&#xa0;42%&#xa0;from&#xa0;110%,&#xa0;respectively, primarily&#xa0;due&#xa0;to&#xa0;the&#xa0;$2,589 insurance claim settlement recorded in the third quarter of 2020 for the remediation efforts on a non-conformance issues with a U.S. customer under a warranty provision of the contract.&#xa0;Consolidated gross margin percentage for the nine month periods ended September 30, 2021 and 2020 remained flat at&#xa0;49%. FUEL CHEM gross margins increased to 50%&#xa0;from 47%&#xa0;in the current quarter due to the increase in revenue volume.&#xa0;Gross margins for the nine months ended September 30, 2021 and 2020&#xa0;for the APC segment were 43%&#xa0;and 54%, respectively.&#xa0;The decrease in APC gross margin&#xa0;is primarily due to the insurance claim settlement recorded in the third quarter of 2020, partially offset by the charges incurred to remedy a non-conformance issues with a U.S. customer under a warranty provision of the contract that was recorded in 2020 and higher product mix of ancillary products and services.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Selling, general and administrative expenses (SG&amp;A) were $2,801&#xa0;and $3,184&#xa0;for the three&#xa0;month periods ended September 30, 2021 and 2020, respectively. For the three month period&#xa0;ended September 30, 2021 the decrease of $383&#xa0;is primarily the result of&#xa0;decreases in employee related costs of $284 and&#xa0;professional services of $143,&#xa0;partially offset by increases in certain administrative overhead expenses of $44.&#xa0;SG&amp;A&#xa0;for the nine month periods ended September 30, 2021 and 2020&#xa0;were $8,858&#xa0;and $9,825, respectively. For the nine month period&#xa0;ended September 30, 2021 the decrease of $967&#xa0;is primarily the result of&#xa0;decreases in employee related costs of $1,114, professional services of $289, and&#xa0;in certain administrative overhead expenses of $63, partially offset by a reversal of a $499 charge to the allowance for doubtful accounts recorded in the second quarter of 2020.&#xa0;For the&#xa0;three month periods&#xa0;ending September 30, 2021 and 2020, SG&amp;A as a percentage of revenues&#xa0;decreased&#xa0;to 37%&#xa0;from 39%.&#xa0;For the&#xa0;nine month periods&#xa0;ending September 30, 2021 and 2020, SG&amp;A as a percentage of revenues&#xa0;decreased&#xa0;to 50%&#xa0;from 60%.&#xa0;The decreases versus the comparable period&#xa0;are primarily due to the increase in overall revenues in the current year.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Research and development expenses for the three and nine&#xa0;month periods ended September 30, 2021 were $340&#xa0;and $1,070, respectively, and for the same periods in 2020 were&#xa0;$285&#xa0;and $880, respectively. The expenditures in our research and development expenses were focused on new product development efforts in the pursuit of commercial applications for technologies outside of our traditional markets, and in the development and analysis of new technologies that could represent incremental market opportunities. This includes water treatment technologies and more specifically, our DGI&#x2122; Dissolved Gas Infusion Systems, an innovative alternative to current aeration technology. This infusion process has a variety of applications in the water and waste water industries, including remediation, treatment, biological activity and wastewater odor management. DGI technology benefits include reduced energy consumption, installation costs, and operating costs, while improving treatment performance.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Income tax expense for the three&#xa0;month periods ended September 30, 2021 and 2020 was&#xa0;$0&#xa0;for both periods, and&#xa0;for the nine month periods ended September 30, 2021 and 2020, Income tax expense was&#xa0;$10&#xa0;and $149, respectively. The Company is projecting a consolidated effective tax rate of approximately 3% for 2021, which is lower than the federal income tax rate of 21%. The Company's effective tax rate differs from the statutory federal tax rate of 21% for the three and nine months ended September 30, 2021 primarily due to a full valuation allowance recorded on our United States, China and Italy deferred tax assets since we cannot anticipate when or if we will have sufficient taxable income to utilize the deferred tax assets in the future. Further, our effective tax rate differs from the statutory federal tax rate due to state taxes, differences between U.S. and foreign tax rates, foreign losses incurred with no related tax benefit, non-deductible commissions, and non-deductible meals and entertainment expenses.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b><i>Liquidity and Sources of Capital</i></b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We have sustained losses from&#xa0;operations during the nine month period ended September 30, 2021 totaling $1,268. Our cash provided by operations for this same period totaled $572.&#xa0;</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Our cash balance as of September 30, 2021 totaled $36,322&#xa0;(including restricted cash of $1,161), and our working capital totaled $38,294. We have no outstanding debt other than our outstanding letters of credit, under our current credit agreement&#xa0;which does not have any financial covenants as we are currently in a Cash Collateral Security agreement with our lender.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The effects&#xa0;of the COVID-19&#xa0;global pandemic has presented&#xa0;significant risks to the Company, not all of which the Company is able to fully evaluate or even foresee at the current time. Although the impact of the pandemic is difficult to quantify, the Company has experienced, and may continue to experience, reductions in demand for certain of our products&#xa0;due to the delay or abandonment of ongoing or anticipated projects due to our customers&#x2019;, suppliers&#x2019; and other third parties&#x2019; financial distress or concern regarding the volatility of global markets. Other directly or indirectly COVID-19 related effects, such as supply chain disruptions and&#xa0;travel restrictions,&#xa0;have been impacting operations and financial performance to varying degrees. We continue to monitor our liquidity needs and in response to our continued losses have taken measures to reduce expenses and restructure operations which we feel are necessary to ensure we maintain sufficient working capital and liquidity to operate the business and invest in our future. We have evaluated our ongoing business needs, and considered the cash requirements of our base business of Air Pollution Control and FUEL CHEM, as well as our efforts to wind-down our APC operations in China. This evaluation included consideration of the following: a) customer and revenue trends in our APC and FUEL CHEM business segments, b) current operating structure and expenditure levels, and c) the costs of winding down our APC operations in China as well as other research and development initiatives.&#xa0; Based on this analysis, management believes that currently we have sufficient cash and working capital to operate our base APC and FUEL CHEM businesses.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">On June 19, 2019, the Company entered into a Cash Collateral Security agreement with BMO Harris Bank, N.A. (the BMO Harris agreement) to use for the sole purpose of issuing standby letters of credit. The BMO Harris agreement requires us to pledge as cash collateral 105% of the aggregate face amount of outstanding standby letters of credit. The Company pays 250 basis points on the face values of outstanding letters of credit. There are no financial covenants set forth in the BMO Harris agreement. At September 30, 2021, the Company had outstanding standby letters of credit totaling approximately $1,106&#xa0;under the BMO Harris agreement. As of September 30, 2021, the Company held $1,161&#xa0;in a separate restricted use designated BMO Harris Bank N.A. deposit account. Fuel Tech is committed to reimbursing the issuing bank for any payments made by the bank under these instruments.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">On April 15, 2020, the Company received $1,556 in loan proceeds from the Paycheck Protection Program (the &#x201c;PPP&#x201d;), established pursuant to the Coronavirus Aid, Relief, and Economic Security Act (the &#x201c;CARES Act&#x201d;) and administered by the U.S. Small Business Administration (&#x201c;SBA&#x201d;). On January 8, 2021&#xa0;the Company received full forgiveness from the SBA for the entire balance of loan proceeds used to&#xa0;fund its qualified payroll&#xa0;expenses. When the loan was forgiven,&#xa0;the Company reduced the non-current liability by the amount forgiven&#xa0;and recorded other income&#xa0;in the condensed consolidated statement of operations.&#xa0;&#xa0;</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b><i>Contingencies and Contractual Obligations</i></b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech issues a standard product warranty with the sale of its products to customers as discussed in Note 14. There was no change in the warranty liability balance during the nine months ended September 30, 2021.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b><i>Forward-Looking Statements</i></b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">This Quarterly Report on Form&#xa0;10-Q contains &#x201c;forward-looking statements,&#x201d; as defined in Section&#xa0;21E of the Securities Exchange Act of 1934, as amended, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and reflect Fuel Tech&#x2019;s current expectations regarding future growth, results of operations, cash flows, performance and business prospects, and opportunities, as well as assumptions made by, and information currently available to, our management. Fuel Tech has tried to identify forward-looking statements by using words such as &#x201c;anticipate,&#x201d; &#x201c;believe,&#x201d; &#x201c;plan,&#x201d; &#x201c;expect,&#x201d; &#x201c;estimate,&#x201d; &#x201c;intend,&#x201d; &#x201c;will,&#x201d; and similar expressions, but these words are not the exclusive means of identifying forward-looking statements. These statements are based on information currently available to Fuel Tech and are subject to various risks, uncertainties, and other factors, including, but not limited to, those discussed in Fuel Tech&#x2019;s Annual Report on Form 10-K for the year ended December 31, 2020 in Item&#xa0;1A under the caption &#x201c;Risk Factors,&#x201d; which could cause Fuel Tech&#x2019;s actual growth, results of operations, financial condition, cash flows, performance and business prospects and opportunities to differ materially from those expressed in, or implied by, these statements. Fuel Tech undertakes no obligation to update such factors or to publicly announce the results of any of the forward-looking statements contained herein to reflect future events, developments, or changed circumstances or for any other reason. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those detailed in Fuel Tech&#x2019;s filings with the Securities and Exchange Commission.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a id="qq" title="qq" href="#"></a>Item 3.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Quantitative and Qualitative Disclosures about Market Risk</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech&#x2019;s earnings and cash flow are subject to fluctuations due to changes in foreign currency exchange rates. We do not enter into foreign currency forward contracts nor into foreign currency option contracts to manage this risk due to the immaterial nature of the transactions involved.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a id="cp" title="cp" href="#"></a>Item 4.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Controls and Procedures</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><i>Evaluation of Disclosure Controls and Procedures</i></b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech maintains disclosure controls and procedures and internal controls designed to ensure (a)&#xa0;that information required to be disclosed in Fuel Tech&#x2019;s filings under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission&#x2019;s rules and forms, and (b)&#xa0;that such information is accumulated and communicated to management, including the principal executive and financial officer, as appropriate to allow timely decisions regarding required disclosure. Fuel Tech&#x2019;s Chief Executive Officer and principal financial officer have evaluated the Company&#x2019;s disclosure controls and procedures, as defined in Rules 13a &#x2013; 15(e) and 15d -15(e) of the Exchange Act, as of the end of the period covered by this report, and they have concluded that these controls and procedures are effective.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b><i>Changes in Internal Control over Financial Reporting</i></b></p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">There has been no change in the Company's internal control over financial reporting during the quarter covered by this report that has materially affected, or is reasonably likely to materially affect, its internal control over financial reporting.</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><a id="pii" title="pii" href="#"></a>PART II. OTHER INFORMATION</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&#xa0;</b></p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a id="legal" title="legal" href="#"></a>Item 1.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Legal Proceedings</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We are from time to time involved in litigation incidental to our business. We are not currently involved in any litigation in which we believe an adverse outcome would have a material effect on our business, financial conditions, results of operations, or prospects.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a id="risk" title="risk" href="#"></a>Item 1A.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Risk Factors</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The risk factors included in our Annual Report on Form 10-K for fiscal year ended&#xa0;December 31, 2020&#xa0;have not materially changed.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"><a id="equitysales" title="equitysales" href="#"></a>Item 2.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Unregistered Sales of Equity Securities and Use of Proceeds</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">None</p>
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  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a id="exhibits" title="exhibits" href="#"></a>Item 6.&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;&#xa0;Exhibits</p>
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     <td style="vertical-align: bottom; width: 6%;"> <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">a.</p> </td>
     <td colspan="2" style="vertical-align: bottom; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Exhibits (all filed herewith)</p> </td>
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     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">31.1</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="ex_280456.htm" style="-sec-extract:exhibit;">Certification of CEO pursuant to Section&#xa0;302 of Sarbanes-Oxley Act of 2002</a></p> </td>
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     <td style="vertical-align: top; width: 6%;">&#xa0;</td>
     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">31.2</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="ex_280457.htm" style="-sec-extract:exhibit;">Certification of principal financial officer pursuant to Section&#xa0;302 of Sarbanes-Oxley Act of 2002</a></p> </td>
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     <td style="vertical-align: top; width: 6%;">&#xa0;</td>
     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">32</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><a href="ex_280458.htm" style="-sec-extract:exhibit;">Certification of CEO and principal financial officer pursuant to Section&#xa0;906 of Sarbanes-Oxley Act of 2002</a></p> </td>
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     <td style="vertical-align: top; width: 6%;">&#xa0;</td>
     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">101.1</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Inline INSXBRL Instance Document - The Instance Document does not appear in the Interactive Data File because its Inline XBRL tags are embedded within the Inline XBRL document.</p> </td>
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     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">101.2</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Inline SCHXBRL Taxonomy Extension Schema Document</p> </td>
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     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">101.3</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Inline CALXBRL Taxonomy Extension Calculation Linkbase Document</p> </td>
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     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">101.4</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Inline DEFXBRL Taxonomy Extension Definition Linkbase Document</p> </td>
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     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">101.5</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Inline LABXBRL Taxonomy Extension Label Linkbase Document</p> </td>
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     <td style="vertical-align: top; width: 5%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">101.6</p> </td>
     <td style="vertical-align: top; width: 89%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Inline PREXBRL Taxonomy Extension Prevention Linkbase Document</p> </td>
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     <td style="vertical-align: top; width: 6%;">&#xa0;</td>
     <td style="vertical-align: top; width: 5%;">104</td>
     <td style="vertical-align: top; width: 89%;">Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)</td>
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  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><a id="sigs" title="sigs" href="#"></a>FUEL TECH, INC.</b></p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;"><b>Signatures</b></p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.</p>
  <p style="font-family:'Times New Roman', Times, serif;font-size:12pt;margin:0pt;text-align:left;">&#xa0;</p>
  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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     <td style="vertical-align:top;width:47.8%;">Date: November 9, 2021</td>
     <td style="vertical-align:top;width:4.1%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">By:</p> </td>
     <td style="vertical-align:top;border-bottom:solid 1px #000000;;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">/s/ Vincent J. Arnone</p> </td>
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     <td style="vertical-align:top;width:47.8%;">&#xa0;</td>
     <td style="vertical-align:top;width:4.1%;">&#xa0;</td>
     <td style="vertical-align:top;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Vincent J. Arnone</p> </td>
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     <td style="vertical-align:top;width:47.8%;">&#xa0;</td>
     <td style="vertical-align:top;width:4.1%;">&#xa0;</td>
     <td style="vertical-align:top;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">President and Chief Executive Officer</p> </td>
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     <td style="vertical-align:top;width:47.8%;">&#xa0;</td>
     <td style="vertical-align:top;width:4.1%;">&#xa0;</td>
     <td style="vertical-align:top;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">(Principal Executive Officer)</p> </td>
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  <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#xa0;</p>
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     <td style="vertical-align:top;width:47.8%;">Date: November 9, 2021</td>
     <td style="vertical-align:top;width:4.1%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">By:</p> </td>
     <td style="vertical-align:top;border-bottom:solid 1px #000000;;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">/s/ Ellen T. Albrecht</p> </td>
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     <td style="vertical-align:top;width:47.8%;">&#xa0;</td>
     <td style="vertical-align:top;width:4.1%;">&#xa0;</td>
     <td style="vertical-align:top;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Ellen T. Albrecht</p> </td>
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     <td style="vertical-align:top;width:47.8%;">&#xa0;</td>
     <td style="vertical-align:top;width:4.1%;">&#xa0;</td>
     <td style="vertical-align:top;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Acting Treasurer and Controller</p> </td>
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     <td style="vertical-align:top;width:48%;"> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">(Principal Financial Officer)</p> </td>
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<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>ex_280456.htm
<DESCRIPTION>EXHIBIT 31.1
<TEXT>
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<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: right;"><b>Exhibit 31.1</b></p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">I, Vincent J. Arnone, certify that:</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">1. I have reviewed this quarterly report on Form 10-Q of Fuel Tech, Inc.;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">4. The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15 (e)&nbsp;and 15d-15 (e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent functions):</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.</p>

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			<td style="vertical-align:bottom;width:48%;">Date: November 9, 2021</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">By:</p>
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			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">/s/ Vincent J. Arnone</p>
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			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Vincent J. Arnone</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">President and Chief Executive Officer</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">(Principal Executive Officer)</p>
			</td>
		</tr>

</table>

<p style="margin: 0; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt">&nbsp;</p>

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<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>ex_280457.htm
<DESCRIPTION>EXHIBIT 31.2
<TEXT>
<html><head>
	<title>ex_280457.htm</title>
	<meta charset="utf-8"><meta name="format-detection" content="telephone=no">
</head>
<body style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; padding:0in .1in;">
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: right;"><b>Exhibit 31.2</b></p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: right;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">I, Ellen T. Albrecht, certify that:</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">1. I have reviewed this quarterly report on Form 10-Q of Fuel Tech, Inc.;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">4. The registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15 (e)&nbsp;and 15d-15 (e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">c) evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">d) disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">5. The registrant's other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent functions):</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.</p>

<table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

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			<td colspan="3" style="vertical-align:middle;width:100%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:middle;width:48%;">&nbsp;</td>
			<td style="vertical-align:middle;width:4%;">&nbsp;</td>
			<td style="vertical-align:middle;width:48%;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">Date: November 9, 2021</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">By:</p>
			</td>
			<td style="vertical-align:bottom;border-bottom:solid 1px #000000;;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">/s/ Ellen T. Albrecht</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Ellen T. Albrecht</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Acting Treasurer and Controller</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">(Principal Financial Officer)</p>
			</td>
		</tr>

</table>

<p style="margin: 0; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt">&nbsp;</p>

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<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>4
<FILENAME>ex_280458.htm
<DESCRIPTION>EXHIBIT 32
<TEXT>
<html><head>
	<title>ex_280458.htm</title>
	<meta charset="utf-8"><meta name="format-detection" content="telephone=no">
</head>
<body style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; padding: 0in 0.1in; cursor: auto;">
<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: right;"><b>Exhibit 32</b></p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">The undersigned in their capacities as Chief Executive Officer and Principal Financial Officer of the Registrant do hereby certify that:</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">(i) this report fully complies with the requirements of Section&nbsp;13(a) or 15(d) of the Securities Exchange Act of 1934; and</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-indent: 18pt; text-align: justify;">(ii) information contained in the report fairly presents, in all material respects, the financial condition and results of operations of the Registrant as of, and for, the periods presented in the report.</p>

<table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td colspan="3" style="vertical-align: middle; width: 100%; text-align: justify;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align: middle; width: 48%; text-align: justify;">&nbsp;</td>
			<td style="vertical-align: middle; width: 4%; text-align: justify;">&nbsp;</td>
			<td style="vertical-align: middle; width: 48%; text-align: justify;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Date: November 9, 2021</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">By:</p>
			</td>
			<td style="vertical-align:bottom;border-bottom:solid 1px #000000;;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">/s/ Vincent J. Arnone</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Vincent J. Arnone</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">President and Chief Executive Officer</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">(Principal Executive Officer)</p>
			</td>
		</tr>

</table>

<table border="0" cellpadding="0" cellspacing="0" style="width:100%;text-indent:0;font-family:'Times New Roman', Times, serif;font-size:10pt;">

		<tr>
			<td colspan="3" style="vertical-align: middle; width: 100%; text-align: justify;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align: middle; width: 48%; text-align: justify;">&nbsp;</td>
			<td style="vertical-align: middle; width: 4%; text-align: justify;">&nbsp;</td>
			<td style="vertical-align: middle; width: 48%; text-align: justify;">&nbsp;</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">Date: November 9, 2021</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">By:</p>
			</td>
			<td style="vertical-align:bottom;border-bottom:solid 1px #000000;;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">/s/ Ellen T. Albrecht</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Ellen T. Albrecht</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Acting Treasurer and Controller</p>
			</td>
		</tr>
		<tr>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:4%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>
			</td>
			<td style="vertical-align:bottom;width:48%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">(Principal Financial Officer)</p>
			</td>
		</tr>

</table>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Pursuant to Section&nbsp;906 of the Sarbanes-Oxley Act of 2002 (the &#8220;Act&#8221;) this certification accompanies the Report and shall not, except to the extent required by the Act, be deemed filed by the Registrant for purposes of Section&nbsp;18 of the Securities Exchange Act of 1934, as amended.</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">A signed original of this written statement required by Section&nbsp;906, or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section&nbsp;906, has been provided to Fuel Tech, Inc. and will be retained by Fuel Tech, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&nbsp;</p>

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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
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<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
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<XBRL>
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</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>6
<FILENAME>ftek-20210930_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE
<TEXT>
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    <link:label xlink:label="ftek_statement-statement-note-4-restructuring-activities-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 4 - Restructuring Activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-4-restructuring-activities-tables" xlink:to="ftek_statement-statement-note-4-restructuring-activities-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-tables" xlink:label="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 5 - Accumulated Other Comprehensive Loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-tables" xlink:to="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-7-earnings-per-share-tables" xlink:label="ftek_statement-statement-note-7-earnings-per-share-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-7-earnings-per-share-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 7 - Earnings Per Share</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-7-earnings-per-share-tables" xlink:to="ftek_statement-statement-note-7-earnings-per-share-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-8-stockbased-compensation-tables" xlink:label="ftek_statement-statement-note-8-stockbased-compensation-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-8-stockbased-compensation-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 8 - Stock-based Compensation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-8-stockbased-compensation-tables" xlink:to="ftek_statement-statement-note-8-stockbased-compensation-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-9-warrants-tables" xlink:label="ftek_statement-statement-note-9-warrants-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-9-warrants-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 9 - Warrants</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-9-warrants-tables" xlink:to="ftek_statement-statement-note-9-warrants-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-tables" xlink:label="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 11 - Business Segment and Geographic Financial Data</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-tables" xlink:to="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxDisclosureTextBlock" xlink:to="us-gaap_IncomeTaxDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-12-leases-tables" xlink:label="ftek_statement-statement-note-12-leases-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-12-leases-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 12 - Leases</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-12-leases-tables" xlink:to="ftek_statement-statement-note-12-leases-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-13-accrued-liabilities-tables" xlink:label="ftek_statement-statement-note-13-accrued-liabilities-tables" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-13-accrued-liabilities-tables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 13 - Accrued Liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-13-accrued-liabilities-tables" xlink:to="ftek_statement-statement-note-13-accrued-liabilities-tables-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-cash-cash-equivalents-and-restricted-cash-details" xlink:label="ftek_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-cash-cash-equivalents-and-restricted-cash-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-cash-cash-equivalents-and-restricted-cash-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 2 - Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-cash-cash-equivalents-and-restricted-cash-details" xlink:to="ftek_statement-statement-note-2-summary-of-significant-accounting-policies-reconciliation-of-cash-cash-equivalents-and-restricted-cash-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-product-technology-details" xlink:label="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-product-technology-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-product-technology-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 3 - Revenue - Revenues Disaggregated by Product Technology (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-product-technology-details" xlink:to="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-product-technology-details-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LiabilitiesCurrent</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-geography-details" xlink:label="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-geography-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-geography-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 3 - Revenue - Revenues Disaggregated by Geography (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-geography-details" xlink:to="ftek_statement-statement-note-3-revenue-revenues-disaggregated-by-geography-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-3-revenue-timing-of-revenue-recognition-details" xlink:label="ftek_statement-statement-note-3-revenue-timing-of-revenue-recognition-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-3-revenue-timing-of-revenue-recognition-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 3 - Revenue - Timing of Revenue Recognition (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-3-revenue-timing-of-revenue-recognition-details" xlink:to="ftek_statement-statement-note-3-revenue-timing-of-revenue-recognition-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-3-revenue-components-of-accounts-receivable-details" xlink:label="ftek_statement-statement-note-3-revenue-components-of-accounts-receivable-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-3-revenue-components-of-accounts-receivable-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 3 - Revenue - Components of Accounts Receivable (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-3-revenue-components-of-accounts-receivable-details" xlink:to="ftek_statement-statement-note-3-revenue-components-of-accounts-receivable-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-4-restructuring-activities-charges-and-net-assets-details" xlink:label="ftek_statement-statement-note-4-restructuring-activities-charges-and-net-assets-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-4-restructuring-activities-charges-and-net-assets-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 4 - Restructuring Activities - Charges and Net Assets (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-4-restructuring-activities-charges-and-net-assets-details" xlink:to="ftek_statement-statement-note-4-restructuring-activities-charges-and-net-assets-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details" xlink:label="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 5 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details" xlink:to="ftek_statement-statement-note-5-accumulated-other-comprehensive-loss-accumulated-other-comprehensive-loss-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-7-earnings-per-share-earnings-per-share-details" xlink:label="ftek_statement-statement-note-7-earnings-per-share-earnings-per-share-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-7-earnings-per-share-earnings-per-share-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 7 - Earnings Per Share - Earnings Per Share (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-7-earnings-per-share-earnings-per-share-details" xlink:to="ftek_statement-statement-note-7-earnings-per-share-earnings-per-share-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-8-stockbased-compensation-stockbased-compensation-details" xlink:label="ftek_statement-statement-note-8-stockbased-compensation-stockbased-compensation-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-8-stockbased-compensation-stockbased-compensation-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 8 - Stock-based Compensation - Stock-based Compensation (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-8-stockbased-compensation-stockbased-compensation-details" xlink:to="ftek_statement-statement-note-8-stockbased-compensation-stockbased-compensation-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-8-stockbased-compensation-stock-option-activity-details" xlink:label="ftek_statement-statement-note-8-stockbased-compensation-stock-option-activity-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-8-stockbased-compensation-stock-option-activity-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 8 - Stock-based Compensation - Stock Option Activity (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-8-stockbased-compensation-stock-option-activity-details" xlink:to="ftek_statement-statement-note-8-stockbased-compensation-stock-option-activity-details-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-8-stockbased-compensation-restricted-stock-activity-details" xlink:label="ftek_statement-statement-note-8-stockbased-compensation-restricted-stock-activity-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-8-stockbased-compensation-restricted-stock-activity-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 8 - Stock-based Compensation - Restricted Stock Activity (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-8-stockbased-compensation-restricted-stock-activity-details" xlink:to="ftek_statement-statement-note-8-stockbased-compensation-restricted-stock-activity-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-9-warrants-warrant-activity-details" xlink:label="ftek_statement-statement-note-9-warrants-warrant-activity-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-9-warrants-warrant-activity-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 9 - Warrants - Warrant Activity (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-9-warrants-warrant-activity-details" xlink:to="ftek_statement-statement-note-9-warrants-warrant-activity-details-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProvisionForLossOnContracts" xlink:label="us-gaap_ProvisionForLossOnContracts" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProvisionForLossOnContracts-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ProvisionForLossOnContracts</link:label>
    <link:label xlink:label="us-gaap_ProvisionForLossOnContracts-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for Loss on Contracts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProvisionForLossOnContracts" xlink:to="us-gaap_ProvisionForLossOnContracts-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-9-warrants-summary-of-warrants-outstanding-and-exerciseable-details" xlink:label="ftek_statement-statement-note-9-warrants-summary-of-warrants-outstanding-and-exerciseable-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-9-warrants-summary-of-warrants-outstanding-and-exerciseable-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 9 - Warrants - Summary of Warrants Outstanding and Exerciseable (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-9-warrants-summary-of-warrants-outstanding-and-exerciseable-details" xlink:to="ftek_statement-statement-note-9-warrants-summary-of-warrants-outstanding-and-exerciseable-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-reporting-segment-net-sales-and-gross-margin-details" xlink:label="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-reporting-segment-net-sales-and-gross-margin-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-reporting-segment-net-sales-and-gross-margin-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 11 - Business Segment and Geographic Financial Data - Reporting Segment Net Sales and Gross Margin (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-reporting-segment-net-sales-and-gross-margin-details" xlink:to="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-reporting-segment-net-sales-and-gross-margin-details-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_AccruedEnvironmentalLossContingenciesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accrued remediation contingency (Note 14)</link:label>
    <link:label xlink:label="us-gaap_AccruedEnvironmentalLossContingenciesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AccruedEnvironmentalLossContingenciesCurrent</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedEnvironmentalLossContingenciesCurrent" xlink:to="us-gaap_AccruedEnvironmentalLossContingenciesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-geographic-segment-financial-data-details" xlink:label="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-geographic-segment-financial-data-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-geographic-segment-financial-data-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 11 - Business Segment and Geographic Financial Data - Geographic Segment Financial Data (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-geographic-segment-financial-data-details" xlink:to="ftek_statement-statement-note-11-business-segment-and-geographic-financial-data-geographic-segment-financial-data-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-12-leases-operating-lease-expense-details" xlink:label="ftek_statement-statement-note-12-leases-operating-lease-expense-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-12-leases-operating-lease-expense-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 12 - Leases - Operating Lease Expense (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-12-leases-operating-lease-expense-details" xlink:to="ftek_statement-statement-note-12-leases-operating-lease-expense-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-12-leases-remaining-maturities-of-existing-lease-liabilities-details" xlink:label="ftek_statement-statement-note-12-leases-remaining-maturities-of-existing-lease-liabilities-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-12-leases-remaining-maturities-of-existing-lease-liabilities-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 12 - Leases - Remaining Maturities of Existing Lease Liabilities (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-12-leases-remaining-maturities-of-existing-lease-liabilities-details" xlink:to="ftek_statement-statement-note-12-leases-remaining-maturities-of-existing-lease-liabilities-details-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Option, Activity [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-12-leases-lease-liabilities-details" xlink:label="ftek_statement-statement-note-12-leases-lease-liabilities-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-12-leases-lease-liabilities-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 12 - Leases - Lease Liabilities (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-12-leases-lease-liabilities-details" xlink:to="ftek_statement-statement-note-12-leases-lease-liabilities-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-12-leases-supplemental-cash-flow-information-details" xlink:label="ftek_statement-statement-note-12-leases-supplemental-cash-flow-information-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-12-leases-supplemental-cash-flow-information-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 12 - Leases - Supplemental Cash Flow Information (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-12-leases-supplemental-cash-flow-information-details" xlink:to="ftek_statement-statement-note-12-leases-supplemental-cash-flow-information-details-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_statement-statement-note-13-accrued-liabilities-components-of-other-accrued-liabilities-details" xlink:label="ftek_statement-statement-note-13-accrued-liabilities-components-of-other-accrued-liabilities-details" xlink:type="locator"/>
    <link:label xlink:label="ftek_statement-statement-note-13-accrued-liabilities-components-of-other-accrued-liabilities-details-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note 13 - Accrued Liabilities - Components of Other Accrued Liabilities (Details)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_statement-statement-note-13-accrued-liabilities-components-of-other-accrued-liabilities-details" xlink:to="ftek_statement-statement-note-13-accrued-liabilities-components-of-other-accrued-liabilities-details-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Granted, restricted stock units, weighted average grant date fair value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vested, restricted stock units, weighted average grant date fair value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_NotesToFinancialStatements" xlink:label="ftek_NotesToFinancialStatements" xlink:type="locator"/>
    <link:label xlink:label="ftek_NotesToFinancialStatements-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes To Financial Statements</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_NotesToFinancialStatements" xlink:to="ftek_NotesToFinancialStatements-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Forfeited, restricted stock units, weighted average grant date fair value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_NotesToFinancialStatementsAbstract" xlink:label="ftek_NotesToFinancialStatementsAbstract" xlink:type="locator"/>
    <link:label xlink:label="ftek_NotesToFinancialStatementsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes To Financial Statements [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_NotesToFinancialStatementsAbstract" xlink:to="ftek_NotesToFinancialStatementsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, unvested restricted stock units, weighted average grant date fair value (in dollars per share)</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, unvested restricted stock units, weighted average grant date fair value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Forfeited, restricted stock units, shares (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign currency translation adjustments</link:label>
    <link:label xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation adjustments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, unvested restricted stock units, shares (in shares)</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, unvested restricted stock units, shares (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Granted, restricted stock units, shares (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Vested, restricted stock units, shares (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock" xlink:label="us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]</link:label>
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    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercisable, option, weighted average exercise price (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercisable, weighted average remaining contractual term (Year)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercisable, aggregate intrinsic value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercisable, options (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding, weighted average remaining contractual term (Year)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Outstanding, aggregate intrinsic value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, option, weighted average exercise price (in dollars per share)</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, option, weighted average exercise price (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Contract liabilities (Note 3)</link:label>
    <link:label xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ContractWithCustomerLiabilityCurrent</link:label>
    <link:label xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Current</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiabilityCurrent" xlink:to="us-gaap_ContractWithCustomerLiabilityCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Expired or forfeited, option, weighted average exercise price (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:to="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Granted, option, weighted average exercise price (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercised, option, weighted average exercise price (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee compensation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:to="us-gaap_EmployeeRelatedLiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeasesTextBlock" xlink:label="us-gaap_LesseeOperatingLeasesTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeasesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Leases [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeasesTextBlock" xlink:to="us-gaap_LesseeOperatingLeasesTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsPayableCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance, number of options outstanding (in shares)</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance, number of options outstanding (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Expired or forfeited, options (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other accrued liabilities</link:label>
    <link:label xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other accrued liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:to="us-gaap_OtherAccruedLiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PolicyTextBlockAbstract" xlink:label="us-gaap_PolicyTextBlockAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PolicyTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PolicyTextBlockAbstract</link:label>
    <link:label xlink:label="us-gaap_PolicyTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting Policies</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PolicyTextBlockAbstract" xlink:to="us-gaap_PolicyTextBlockAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsToAcquireProductiveAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsToAcquireProductiveAssets</link:label>
    <link:label xlink:label="us-gaap_PaymentsToAcquireProductiveAssets-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of equipment and patents</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireProductiveAssets" xlink:to="us-gaap_PaymentsToAcquireProductiveAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unexercised options and unvested RSUs (in shares)</link:label>
    <link:label xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:to="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Conversion of unsecured loan notes (in shares)</link:label>
    <link:label xlink:label="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities" xlink:to="us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedLiabilitiesCurrentAbstract" xlink:label="us-gaap_AccruedLiabilitiesCurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccruedLiabilitiesCurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesCurrentAbstract" xlink:to="us-gaap_AccruedLiabilitiesCurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod</link:label>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</link:label>
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    <link:label xlink:label="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock" xlink:to="us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage</link:label>
    <link:label xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationAwardTrancheThreeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Tranche Three [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationAwardTrancheThreeMember" xlink:to="us-gaap_ShareBasedCompensationAwardTrancheThreeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LossContingencyAccrualAtCarryingValue" xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LossContingencyAccrualAtCarryingValue</link:label>
    <link:label xlink:label="us-gaap_LossContingencyAccrualAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss Contingency Accrual, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingencyAccrualAtCarryingValue" xlink:to="us-gaap_LossContingencyAccrualAtCarryingValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesCurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockTextBlock" xlink:label="us-gaap_TreasuryStockTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TreasuryStockTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockTextBlock" xlink:to="us-gaap_TreasuryStockTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VestingAxis" xlink:label="us-gaap_VestingAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_VestingAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VestingAxis" xlink:to="us-gaap_VestingAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_VestingDomain" xlink:label="us-gaap_VestingDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_VestingDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Vesting [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VestingDomain" xlink:to="us-gaap_VestingDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Tranche One [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:to="us-gaap_ShareBasedCompensationAwardTrancheOneMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Tranche Two [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:to="us-gaap_ShareBasedCompensationAwardTrancheTwoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_Assets</link:label>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PlanNameAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="us-gaap_PlanNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PlanNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameDomain" xlink:to="us-gaap_PlanNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Expense, Tax Benefit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock" xlink:to="us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerAssetNet" xlink:label="us-gaap_ContractWithCustomerAssetNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ContractWithCustomerAssetNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ContractWithCustomerAssetNet</link:label>
    <link:label xlink:label="us-gaap_ContractWithCustomerAssetNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract with Customer, Asset, after Allowance for Credit Loss, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerAssetNet" xlink:to="us-gaap_ContractWithCustomerAssetNet-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalents" xlink:label="us-gaap_RestrictedCashAndCashEquivalents" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_RestrictedCashAndCashEquivalents</link:label>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Cash and Cash Equivalents, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashAndCashEquivalents" xlink:to="us-gaap_RestrictedCashAndCashEquivalents-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AwardTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_NetIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label xlink:label="us-gaap_NetIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label xlink:label="us-gaap_NetIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated amortization, intangible assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other intangible assets, net of accumulated amortization of $871 and $757, respectively</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwill-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="us-gaap_RestrictedStockUnitsRSUMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedStockUnitsRSUMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock Units (RSUs) [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockUnitsRSUMember" xlink:to="us-gaap_RestrictedStockUnitsRSUMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="us-gaap_EmployeeStockOptionMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeStockOptionMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Option [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOptionMember" xlink:to="us-gaap_EmployeeStockOptionMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="us-gaap_LossContingencyNatureDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LossContingencyNatureDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingency, Nature [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingencyNatureDomain" xlink:to="us-gaap_LossContingencyNatureDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LossContingenciesByNatureOfContingencyAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingency Nature [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:to="us-gaap_LossContingenciesByNatureOfContingencyAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated depreciation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property and equipment, net of accumulated depreciation of $18,582 and $26,889, respectively</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill" xlink:label="us-gaap_Goodwill" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Goodwill-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label xlink:label="us-gaap_Goodwill-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Goodwill" xlink:to="us-gaap_Goodwill-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_CommonStockOutstandingMember" xlink:label="ftek_CommonStockOutstandingMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_CommonStockOutstandingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock Outstanding [Member]</link:label>
    <link:label xlink:label="ftek_CommonStockOutstandingMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents common stock outstanding.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_CommonStockOutstandingMember" xlink:to="ftek_CommonStockOutstandingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investing Activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="us-gaap_EarningsPerShareAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income (loss) per common share:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_EarningsPerShareAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="us-gaap_EarningsPerShareTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareTextBlock" xlink:to="us-gaap_EarningsPerShareTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember" xlink:label="ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants Issued in Connection with Private Placement [Member]</link:label>
    <link:label xlink:label="ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents warrants issued in connection with private placement.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember" xlink:to="ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued liabilities and other non-current liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxExpenseBenefit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncomeTaxExpenseBenefit</link:label>
    <link:label xlink:label="us-gaap_IncomeTaxExpenseBenefit-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Income tax expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_CN" xlink:label="country_CN" xlink:type="locator"/>
    <link:label xlink:label="country_CN-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CHINA</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_CN" xlink:to="country_CN-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInAccountsPayable</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember" xlink:label="ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Failure of Equipment to Be Remedied Under Warranty Provision [Member]</link:label>
    <link:label xlink:label="ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Related to failure of equipment to be remedied under warranty provision.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember" xlink:to="ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued" xlink:label="ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued" xlink:type="locator"/>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Granted (in shares)</link:label>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Number of Warrants Issued (in shares)</link:label>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents number of warrants issued.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued" xlink:to="ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash</link:label>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted cash included in long-term assets</link:label>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Cash and Cash Equivalents, Noncurrent, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:to="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash</link:label>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted cash included in current assets</link:label>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Cash and Cash Equivalents, Current, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentDecreaseForgiveness" xlink:label="us-gaap_DebtInstrumentDecreaseForgiveness" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentDecreaseForgiveness-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DebtInstrumentDecreaseForgiveness</link:label>
    <link:label xlink:label="us-gaap_DebtInstrumentDecreaseForgiveness-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Decrease, Forgiveness</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentDecreaseForgiveness" xlink:to="us-gaap_DebtInstrumentDecreaseForgiveness-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:label="us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax</link:label>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">After-tax effect of stock-based compensation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax" xlink:to="us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stock options and restricted stock units, net of forfeited</link:label>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AllocatedShareBasedCompensationExpense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag" xlink:type="locator"/>
    <link:label xlink:label="dei_AmendmentFlag-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ComprehensiveIncomeNetOfTax</link:label>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income (loss)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CityAreaCode" xlink:label="dei_CityAreaCode" xlink:type="locator"/>
    <link:label xlink:label="dei_CityAreaCode-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">City Area Code</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GainLossOnSaleOfPropertyPlantEquipment</link:label>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loss (gain) on sale of equipment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:to="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="us-gaap_TreasuryStockSharesAcquired" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TreasuryStockSharesAcquired-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TreasuryStockSharesAcquired</link:label>
    <link:label xlink:label="us-gaap_TreasuryStockSharesAcquired-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Treasury shares withheld (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockSharesAcquired" xlink:to="us-gaap_TreasuryStockSharesAcquired-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharesOutstanding</link:label>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance (in shares)</link:label>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares outstanding (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate" xlink:type="locator"/>
    <link:label xlink:label="dei_CurrentFiscalYearEndDate-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseCost" xlink:label="us-gaap_LeaseCost" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseCost-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LeaseCost</link:label>
    <link:label xlink:label="us-gaap_LeaseCost-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total lease cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_LeaseCost-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Prepaid expenses, other current assets and other non-current assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent</link:label>
    <link:label xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:to="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentFiscalPeriodFocus-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:label="us-gaap_OperatingLeaseCost" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseCost-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating lease cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseCost" xlink:to="us-gaap_OperatingLeaseCost-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentFiscalYearFocus-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermLeaseCost" xlink:label="us-gaap_ShortTermLeaseCost" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShortTermLeaseCost-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term lease cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermLeaseCost" xlink:to="us-gaap_ShortTermLeaseCost-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseCostTableTextBlock" xlink:label="us-gaap_LeaseCostTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseCostTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lease, Cost [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCostTableTextBlock" xlink:to="us-gaap_LeaseCostTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentPeriodEndDate-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leased assets obtained in exchange for operating lease liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:to="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1</link:label>
    <link:label xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Lease, Weighted Average Remaining Lease Term (Year)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:to="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFileNumber" xlink:label="dei_EntityFileNumber" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityFileNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity File Number</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityEmergingGrowthCompany-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentType" xlink:label="dei_DocumentType" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentType-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GainsLossesOnExtinguishmentOfDebt</link:label>
    <link:label xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gain of forgiveness on Paycheck Protection Plan Loan</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness" xlink:type="locator"/>
    <link:label xlink:label="dei_EntitySmallBusiness-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Small Business</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityShellCompany-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Shell Company</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentInformationLineItems" xlink:label="dei_DocumentInformationLineItems" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentInformationLineItems-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Line Items]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentInformationLineItems-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentInformationTable" xlink:label="dei_DocumentInformationTable" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentInformationTable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Table]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentInformationTable" xlink:to="dei_DocumentInformationTable-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityFilerCategory-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="us-gaap_DebtInstrumentAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCurrentReportingStatus-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="us-gaap_DebtInstrumentNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentNameDomain" xlink:to="us-gaap_DebtInstrumentNameDomain-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_ImpairmentOfIntangibleAssetsFinitelived-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ImpairmentOfIntangibleAssetsFinitelived</link:label>
    <link:label xlink:label="us-gaap_ImpairmentOfIntangibleAssetsFinitelived-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment of Intangible Assets, Finite-lived</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:to="us-gaap_ImpairmentOfIntangibleAssetsFinitelived-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_GoodwillImpairmentLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GoodwillImpairmentLoss</link:label>
    <link:label xlink:label="us-gaap_GoodwillImpairmentLoss-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill, Impairment Loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillImpairmentLoss" xlink:to="us-gaap_GoodwillImpairmentLoss-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInAccountsReceivable</link:label>
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    <link:label xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock compensation expense</link:label>
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    <link:label xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityTaxIdentificationNumber" xlink:label="dei_EntityTaxIdentificationNumber" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityTaxIdentificationNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCentralIndexKey-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityRegistrantName-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityDomain" xlink:to="dei_EntityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis" xlink:type="locator"/>
    <link:label xlink:label="dei_LegalEntityAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressAddressLine1" xlink:label="dei_EntityAddressAddressLine1" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityAddressAddressLine1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TreasuryStockValueAcquiredCostMethod</link:label>
    <link:label xlink:label="us-gaap_TreasuryStockValueAcquiredCostMethod-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Treasury shares withheld</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:to="us-gaap_TreasuryStockValueAcquiredCostMethod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressCityOrTown" xlink:label="dei_EntityAddressCityOrTown" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityAddressCityOrTown-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, City or Town</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressPostalZipCode" xlink:label="dei_EntityAddressPostalZipCode" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityAddressPostalZipCode-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityAddressStateOrProvince" xlink:label="dei_EntityAddressStateOrProvince" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityAddressStateOrProvince-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="us-gaap_TreasuryStockValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TreasuryStockValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TreasuryStockValue</link:label>
    <link:label xlink:label="us-gaap_TreasuryStockValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury Stock, Value, Ending Balance</link:label>
    <link:label xlink:label="us-gaap_TreasuryStockValue-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Treasury stock, at cost</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValue" xlink:to="us-gaap_TreasuryStockValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AllowanceForDoubtfulAccountsReceivable</link:label>
    <link:label xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivable-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Allowance for doubtful accounts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:to="us-gaap_AllowanceForDoubtfulAccountsReceivable-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCommonStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="us-gaap_IncreaseDecreaseInInventories" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInInventories-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInInventories</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInInventories-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInventories" xlink:to="us-gaap_IncreaseDecreaseInInventories-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol" xlink:type="locator"/>
    <link:label xlink:label="dei_TradingSymbol-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
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    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:type="locator"/>
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    <link:label xlink:label="dei_LocalPhoneNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Local Phone Number</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_TableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TableTextBlock</link:label>
    <link:label xlink:label="us-gaap_TableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Tables</link:label>
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    <link:label xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, general and administrative</link:label>
    <link:label xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Selling, general and administrative</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingGeneralAndAdministrativeExpense" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpense-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_ProvisionForDoubtfulAccounts-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for doubtful accounts, net of recoveries</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProvisionForDoubtfulAccounts" xlink:to="us-gaap_ProvisionForDoubtfulAccounts-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:type="locator"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross-label" xlink:type="arc"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsOutstandingTerm" xlink:to="us-gaap_WarrantsAndRightsOutstandingTerm-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock issued in connection with private placement, net (in shares)</link:label>
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    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LiabilitiesAndStockholdersEquity</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and stockholders&#8217; equity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/country/2021/country-2021.xsd#country_US" xlink:label="country_US" xlink:type="locator"/>
    <link:label xlink:label="country_US-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED STATES</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_US" xlink:to="country_US-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock issued in connection with private placement, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="us-gaap_ResearchAndDevelopmentExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ResearchAndDevelopmentExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Research and development</link:label>
    <link:label xlink:label="us-gaap_ResearchAndDevelopmentExpense-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Research and development</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated deficit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="us-gaap_DebtDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureTextBlock" xlink:to="us-gaap_DebtDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InterestExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InterestExpense</link:label>
    <link:label xlink:label="us-gaap_InterestExpense-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputPriceVolatilityMember" xlink:label="us-gaap_MeasurementInputPriceVolatilityMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MeasurementInputPriceVolatilityMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input, Price Volatility [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputPriceVolatilityMember" xlink:to="us-gaap_MeasurementInputPriceVolatilityMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changes in operating assets and liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember" xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MeasurementInputRiskFreeInterestRateMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input, Risk Free Interest Rate [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputRiskFreeInterestRateMember" xlink:to="us-gaap_MeasurementInputRiskFreeInterestRateMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureTextBlockAbstract" xlink:label="us-gaap_DisclosureTextBlockAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DisclosureTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DisclosureTextBlockAbstract</link:label>
    <link:label xlink:label="us-gaap_DisclosureTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes to Financial Statements</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureTextBlockAbstract" xlink:to="us-gaap_DisclosureTextBlockAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubstantialDoubtAboutGoingConcernTextBlock" xlink:label="us-gaap_SubstantialDoubtAboutGoingConcernTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubstantialDoubtAboutGoingConcernTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Substantial Doubt about Going Concern [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubstantialDoubtAboutGoingConcernTextBlock" xlink:to="us-gaap_SubstantialDoubtAboutGoingConcernTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:label="us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Cash and Cash Equivalents [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock" xlink:to="us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating lease liabilities - non-current</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputExpectedTermMember" xlink:label="us-gaap_MeasurementInputExpectedTermMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MeasurementInputExpectedTermMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input, Expected Term [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputExpectedTermMember" xlink:to="us-gaap_MeasurementInputExpectedTermMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="us-gaap_OperatingLeaseLiability" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseLiability-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label xlink:label="us-gaap_OperatingLeaseLiability-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total operating lease liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiability-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseLiabilityCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating lease liabilities - current</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="us-gaap_SubsequentEventsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsequentEventsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Events [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeaseRightOfUseAsset-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Right-of-use operating lease assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseRightOfUseAsset" xlink:to="us-gaap_OperatingLeaseRightOfUseAsset-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue</link:label>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total lease payments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="us-gaap_FinanceLeaseLiability" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_FinanceLeaseLiability-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_FinanceLeaseLiability</link:label>
    <link:label xlink:label="us-gaap_FinanceLeaseLiability-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finance Lease, Liability, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiability" xlink:to="us-gaap_FinanceLeaseLiability-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount</link:label>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less imputed interest</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeAxis" xlink:label="us-gaap_MeasurementInputTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MeasurementInputTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputTypeAxis" xlink:to="us-gaap_MeasurementInputTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2024</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MeasurementInputTypeDomain" xlink:label="us-gaap_MeasurementInputTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MeasurementInputTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Input Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MeasurementInputTypeDomain" xlink:to="us-gaap_MeasurementInputTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2025</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense</link:label>
    <link:label xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred Compensation Arrangement with Individual, Compensation Expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense" xlink:to="us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2022</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2023</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Liability, Maturity [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherAssetsNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensation-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock-based compensation, net of forfeitures</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeLeasesPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Leases [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeLeasesPolicyTextBlock" xlink:to="us-gaap_LesseeLeasesPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">2021 (excluding the nine months ended September 30, 2021)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentForAmortization" xlink:label="us-gaap_AdjustmentForAmortization" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdjustmentForAmortization-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortization</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentForAmortization" xlink:to="us-gaap_AdjustmentForAmortization-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Bonus and Profit Sharing Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:to="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain" xlink:label="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Bonus and Profit Sharing Arrangement, Individual Contract, Type of Deferred Compensation [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain" xlink:to="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Depreciation" xlink:label="us-gaap_Depreciation" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Depreciation-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Depreciation" xlink:to="us-gaap_Depreciation-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="us-gaap_SharesIssuedPricePerShare" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharesIssuedPricePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharesIssuedPricePerShare</link:label>
    <link:label xlink:label="us-gaap_SharesIssuedPricePerShare-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Shares Issued, Price Per Share (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssuedPricePerShare" xlink:to="us-gaap_SharesIssuedPricePerShare-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AssetsCurrent</link:label>
    <link:label xlink:label="us-gaap_AssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="us-gaap_TreasuryStockShares" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TreasuryStockShares-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TreasuryStockShares</link:label>
    <link:label xlink:label="us-gaap_TreasuryStockShares-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury Stock, Shares, Ending Balance (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockShares" xlink:to="us-gaap_TreasuryStockShares-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsNet" xlink:label="us-gaap_AssetsNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AssetsNet</link:label>
    <link:label xlink:label="us-gaap_AssetsNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total net assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsNet" xlink:to="us-gaap_AssetsNet-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, $.01 par value, 40,000,000 shares authorized, 31,227,300 and 25,639,702 shares issued, and 30,263,791 and 25,228,951 shares outstanding, respectively</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares authorized (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="us-gaap_CommonStockSharesIssued" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockSharesIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares issued (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockParOrStatedValuePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, par value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_AsiaMember" xlink:label="srt_AsiaMember" xlink:type="locator"/>
    <link:label xlink:label="srt_AsiaMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asia [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_AsiaMember" xlink:to="srt_AsiaMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember" xlink:label="srt_RangeMember" xlink:type="locator"/>
    <link:label xlink:label="srt_RangeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeMember" xlink:to="srt_RangeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeasePayments" xlink:label="us-gaap_OperatingLeasePayments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingLeasePayments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash paid for amounts included in the measurement of lease liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasePayments" xlink:to="us-gaap_OperatingLeasePayments-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember" xlink:label="srt_MaximumMember" xlink:type="locator"/>
    <link:label xlink:label="srt_MaximumMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember" xlink:label="srt_MinimumMember" xlink:type="locator"/>
    <link:label xlink:label="srt_MinimumMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="srt_ProductOrServiceAxis" xlink:type="locator"/>
    <link:label xlink:label="srt_ProductOrServiceAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ProductOrServiceAxis" xlink:to="srt_ProductOrServiceAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="srt_ProductsAndServicesDomain" xlink:type="locator"/>
    <link:label xlink:label="srt_ProductsAndServicesDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ProductsAndServicesDomain" xlink:to="srt_ProductsAndServicesDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis" xlink:label="srt_RangeAxis" xlink:type="locator"/>
    <link:label xlink:label="srt_RangeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeAxis" xlink:to="srt_RangeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfReportingUnits" xlink:label="us-gaap_NumberOfReportingUnits" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NumberOfReportingUnits-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NumberOfReportingUnits</link:label>
    <link:label xlink:label="us-gaap_NumberOfReportingUnits-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Reporting Units</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfReportingUnits" xlink:to="us-gaap_NumberOfReportingUnits-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_LatinAmericaMember" xlink:label="srt_LatinAmericaMember" xlink:type="locator"/>
    <link:label xlink:label="srt_LatinAmericaMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Latin America [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_LatinAmericaMember" xlink:to="srt_LatinAmericaMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NoncurrentAssets" xlink:label="us-gaap_NoncurrentAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NoncurrentAssets-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label xlink:label="us-gaap_NoncurrentAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NoncurrentAssets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncurrentAssets" xlink:to="us-gaap_NoncurrentAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="srt_StatementGeographicalAxis" xlink:type="locator"/>
    <link:label xlink:label="srt_StatementGeographicalAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_StatementGeographicalAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="srt_SegmentGeographicalDomain" xlink:type="locator"/>
    <link:label xlink:label="srt_SegmentGeographicalDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_SegmentGeographicalDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_EuropeMember" xlink:label="srt_EuropeMember" xlink:type="locator"/>
    <link:label xlink:label="srt_EuropeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Europe [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_EuropeMember" xlink:to="srt_EuropeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock" xlink:label="us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock" xlink:to="us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet" xlink:label="us-gaap_InventoryNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventories, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="us-gaap_InventoryNet-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnbilledReceivablesCurrent" xlink:label="us-gaap_UnbilledReceivablesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_UnbilledReceivablesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unbilled receivables</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnbilledReceivablesCurrent" xlink:to="us-gaap_UnbilledReceivablesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsAndOtherReceivablesNetCurrent" xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsAndOtherReceivablesNetCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other short-term receivables</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsAndOtherReceivablesNetCurrent" xlink:to="us-gaap_AccountsAndOtherReceivablesNetCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Segment Reporting Information, by Segment [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:to="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="us-gaap_WarrantsAndRightsOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WarrantsAndRightsOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_WarrantsAndRightsOutstanding</link:label>
    <link:label xlink:label="us-gaap_WarrantsAndRightsOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warrants and Rights Outstanding</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsOutstanding" xlink:to="us-gaap_WarrantsAndRightsOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementLineItems-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent" xlink:label="us-gaap_AccountsReceivableGrossCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsReceivableGrossCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trade receivables</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableGrossCurrent" xlink:to="us-gaap_AccountsReceivableGrossCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="us-gaap_AccountsReceivableNetCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsReceivableNetCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts receivable, net</link:label>
    <link:label xlink:label="us-gaap_AccountsReceivableNetCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total accounts receivable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="us-gaap_NumberOfReportableSegments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NumberOfReportableSegments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NumberOfReportableSegments</link:label>
    <link:label xlink:label="us-gaap_NumberOfReportableSegments-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Reportable Segments</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NumberOfReportableSegments" xlink:to="us-gaap_NumberOfReportableSegments-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StandardProductWarrantyAccrual" xlink:label="us-gaap_StandardProductWarrantyAccrual" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StandardProductWarrantyAccrual-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StandardProductWarrantyAccrual</link:label>
    <link:label xlink:label="us-gaap_StandardProductWarrantyAccrual-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Standard Product Warranty Accrual, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StandardProductWarrantyAccrual" xlink:to="us-gaap_StandardProductWarrantyAccrual-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease" xlink:label="us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease</link:label>
    <link:label xlink:label="us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Standard Product Warranty Accrual, Period Increase (Decrease), Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease" xlink:to="us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional paid-in capital</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AOCI Attributable to Parent [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="us-gaap_OtherNonoperatingIncomeExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherNonoperatingIncomeExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other income (expense),net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_OtherNonoperatingIncomeExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SegmentReportingDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingDisclosureTextBlock" xlink:to="us-gaap_SegmentReportingDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders&#8217; equity:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsCurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current assets:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</link:label>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations</link:label>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash, cash equivalents, and restricted cash at beginning of period (Note 2)</link:label>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash, cash equivalents and restricted cash at end of period (Note 2)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrivatePlacementMember" xlink:label="us-gaap_PrivatePlacementMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PrivatePlacementMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Private Placement [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrivatePlacementMember" xlink:to="us-gaap_PrivatePlacementMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="us-gaap_InvestmentIncomeInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InvestmentIncomeInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeInterest" xlink:to="us-gaap_InvestmentIncomeInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</link:label>
    <link:label xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in cash, cash equivalents and restricted cash</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Liabilities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_Liabilities</link:label>
    <link:label xlink:label="us-gaap_Liabilities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label xlink:label="us-gaap_Liabilities-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInFinancingActivities</link:label>
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    <link:label xlink:label="us-gaap_SubsidiarySaleOfStockAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effect of exchange rate fluctuations on cash</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OperatingIncomeLoss</link:label>
    <link:label xlink:label="us-gaap_OperatingIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Operating income (loss) from operations</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</link:label>
    <link:label xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:to="us-gaap_ContractWithCustomerLiabilityRevenueRecognized-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInOperatingActivities</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by (used in) operating activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid expenses and other current assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInInvestingActivities</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in investing activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="us-gaap_CostOfRevenue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CostOfRevenue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost of sales</link:label>
    <link:label xlink:label="us-gaap_CostOfRevenue-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cost of sales</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfRevenue" xlink:to="us-gaap_CostOfRevenue-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GrossProfit" xlink:label="us-gaap_GrossProfit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GrossProfit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GrossProfit</link:label>
    <link:label xlink:label="us-gaap_GrossProfit-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Gross margin</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_GrossProfit-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:to="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred income taxes, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:to="us-gaap_DeferredIncomeTaxLiabilitiesNet-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsOfStockIssuanceCosts-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsOfStockIssuanceCosts</link:label>
    <link:label xlink:label="us-gaap_PaymentsOfStockIssuanceCosts-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Payments of Stock Issuance Costs</link:label>
    <link:label xlink:label="us-gaap_PaymentsOfStockIssuanceCosts-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Costs related to sale of common stock issued in connection with private placement</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfStockIssuanceCosts" xlink:to="us-gaap_PaymentsOfStockIssuanceCosts-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForRepurchaseOfEquity" xlink:label="us-gaap_PaymentsForRepurchaseOfEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsForRepurchaseOfEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsForRepurchaseOfEquity</link:label>
    <link:label xlink:label="us-gaap_PaymentsForRepurchaseOfEquity-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Taxes paid on behalf of equity award participants</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForRepurchaseOfEquity" xlink:to="us-gaap_PaymentsForRepurchaseOfEquity-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_CostsAndExpenses-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CostsAndExpenses</link:label>
    <link:label xlink:label="us-gaap_CostsAndExpenses-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Costs and Expenses, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostsAndExpenses" xlink:to="us-gaap_CostsAndExpenses-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_CostsAndExpensesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Costs and expenses:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostsAndExpensesAbstract" xlink:to="us-gaap_CostsAndExpensesAbstract-label" xlink:type="arc"/>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfPrivatePlacement" xlink:to="us-gaap_ProceedsFromIssuanceOfPrivatePlacement-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_RetainedEarningsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:label xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues from external customers</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_TreasuryStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockMember" xlink:to="us-gaap_TreasuryStockMember-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_AdditionalPaidInCapitalMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="us-gaap_AdditionalPaidInCapitalMember-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_StatementEquityComponentsAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_EquityComponentDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_EquityComponentDomain-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)</link:label>
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    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right [Axis]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRemainingPerformanceObligation" xlink:to="us-gaap_RevenueRemainingPerformanceObligation-label" xlink:type="arc"/>
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    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="us-gaap_ClassOfWarrantOrRightDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis" xlink:to="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number outstanding/ exercisable (in shares)</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance (in shares)</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</link:label>
    <link:label xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income (loss) before income taxes</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights</link:label>
    <link:label xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock" xlink:to="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss) Note [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:to="us-gaap_ComprehensiveIncomeNoteTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss):</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:to="us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConvertibleDebt" xlink:label="us-gaap_ConvertibleDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ConvertibleDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nil coupon perpetual loan notes</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain" xlink:label="us-gaap_TimingOfTransferOfGoodOrServiceDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TimingOfTransferOfGoodOrServiceDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Timing of Transfer of Good or Service [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TimingOfTransferOfGoodOrServiceDomain" xlink:to="us-gaap_TimingOfTransferOfGoodOrServiceDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TransferredAtPointInTimeMember" xlink:label="us-gaap_TransferredAtPointInTimeMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TransferredAtPointInTimeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transferred at Point in Time [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TransferredAtPointInTimeMember" xlink:to="us-gaap_TransferredAtPointInTimeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TransferredOverTimeMember" xlink:label="us-gaap_TransferredOverTimeMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TransferredOverTimeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transferred over Time [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TransferredOverTimeMember" xlink:to="us-gaap_TransferredOverTimeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disaggregation of Revenue [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:to="us-gaap_DisaggregationOfRevenueTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis" xlink:label="us-gaap_TimingOfTransferOfGoodOrServiceAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TimingOfTransferOfGoodOrServiceAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Timing of Transfer of Good or Service [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TimingOfTransferOfGoodOrServiceAxis" xlink:to="us-gaap_TimingOfTransferOfGoodOrServiceAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from Contract with Customer [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:to="us-gaap_RevenueFromContractWithCustomerTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:to="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentQuarterlyReport" xlink:label="dei_DocumentQuarterlyReport" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentQuarterlyReport-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Quarterly Report</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentQuarterlyReport" xlink:to="dei_DocumentQuarterlyReport-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="dei_EntityIncorporationStateCountryCode" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityIncorporationStateCountryCode-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="us-gaap_UnrecognizedTaxBenefits" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_UnrecognizedTaxBenefits-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_UnrecognizedTaxBenefits</link:label>
    <link:label xlink:label="us-gaap_UnrecognizedTaxBenefits-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized Tax Benefits, Ending Balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefits" xlink:to="us-gaap_UnrecognizedTaxBenefits-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountingPoliciesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_DocumentTransitionReport" xlink:label="dei_DocumentTransitionReport" xlink:type="locator"/>
    <link:label xlink:label="dei_DocumentTransitionReport-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Transition Report</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentTransitionReport" xlink:to="dei_DocumentTransitionReport-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SellingGeneralAndAdministrativeExpensesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selling, General and Administrative Expenses [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingGeneralAndAdministrativeExpensesMember" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpensesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityInteractiveDataCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_SecurityExchangeName" xlink:label="dei_SecurityExchangeName" xlink:type="locator"/>
    <link:label xlink:label="dei_SecurityExchangeName-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Exchange Name</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2021/dei-2021.xsd#dei_Security12bTitle" xlink:label="dei_Security12bTitle" xlink:type="locator"/>
    <link:label xlink:label="dei_Security12bTitle-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from borrowings</link:label>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Long-term Debt, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:to="us-gaap_ProceedsFromIssuanceOfLongTermDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_NilCouponPerpetualLoanNotesMember" xlink:label="ftek_NilCouponPerpetualLoanNotesMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_NilCouponPerpetualLoanNotesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nil Coupon Perpetual Loan Notes [Member]</link:label>
    <link:label xlink:label="ftek_NilCouponPerpetualLoanNotesMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to perpetual loan notes with a nil coupon.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_NilCouponPerpetualLoanNotesMember" xlink:to="ftek_NilCouponPerpetualLoanNotesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="us-gaap_IncomeStatementLocationAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementLocationAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationAxis" xlink:to="us-gaap_IncomeStatementLocationAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="us-gaap_IncomeStatementLocationDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementLocationDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationDomain" xlink:to="us-gaap_IncomeStatementLocationDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:to="us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="us-gaap_StatementBusinessSegmentsAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementBusinessSegmentsAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementBusinessSegmentsAxis" xlink:to="us-gaap_StatementBusinessSegmentsAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SegmentDomain" xlink:label="us-gaap_SegmentDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SegmentDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentDomain" xlink:to="us-gaap_SegmentDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AllOtherSegmentsMember" xlink:label="us-gaap_AllOtherSegmentsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AllOtherSegmentsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Segments [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllOtherSegmentsMember" xlink:to="us-gaap_AllOtherSegmentsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_AirPollutionControlMember" xlink:label="ftek_AirPollutionControlMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_AirPollutionControlMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Air Pollution Control [Member]</link:label>
    <link:label xlink:label="ftek_AirPollutionControlMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to the Air Pollution Control segment.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_AirPollutionControlMember" xlink:to="ftek_AirPollutionControlMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted-average number of common shares outstanding:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract" xlink:to="us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount</link:label>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_OtherAccruedLiabilitiesMiscellaneousCurrent" xlink:label="ftek_OtherAccruedLiabilitiesMiscellaneousCurrent" xlink:type="locator"/>
    <link:label xlink:label="ftek_OtherAccruedLiabilitiesMiscellaneousCurrent-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other accrued liabilities</link:label>
    <link:label xlink:label="ftek_OtherAccruedLiabilitiesMiscellaneousCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_OtherAccruedLiabilitiesMiscellaneousCurrent</link:label>
    <link:label xlink:label="ftek_OtherAccruedLiabilitiesMiscellaneousCurrent-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of miscellaneous expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_OtherAccruedLiabilitiesMiscellaneousCurrent" xlink:to="ftek_OtherAccruedLiabilitiesMiscellaneousCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted (in shares)</link:label>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Diluted weighted-average shares (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_FUELCHEMMember" xlink:label="ftek_FUELCHEMMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_FUELCHEMMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">FUEL CHEM [Member]</link:label>
    <link:label xlink:label="ftek_FUELCHEMMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to the FUEL CHEM technology segment.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_FUELCHEMMember" xlink:to="ftek_FUELCHEMMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonUsMember" xlink:label="us-gaap_NonUsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NonUsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-US [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonUsMember" xlink:to="us-gaap_NonUsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementTable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfFinancialPositionAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="us-gaap_EarningsPerShareDiluted" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareDiluted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted net income (loss) per common share (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareDiluted" xlink:to="us-gaap_EarningsPerShareDiluted-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Basic weighted-average shares (in shares)</link:label>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EffectiveIncomeTaxRateContinuingOperations</link:label>
    <link:label xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Percent, Total</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:to="us-gaap_EffectiveIncomeTaxRateContinuingOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="us-gaap_EarningsPerShareBasic" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareBasic-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic net income (loss) per common share (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="us-gaap_EarningsPerShareBasic-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_AncillaryRevenueMember" xlink:label="ftek_AncillaryRevenueMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_AncillaryRevenueMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ancillary Revenue [Member]</link:label>
    <link:label xlink:label="ftek_AncillaryRevenueMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to revenue from ancillary sources.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_AncillaryRevenueMember" xlink:to="ftek_AncillaryRevenueMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfCashFlowsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts" xlink:label="ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts" xlink:type="locator"/>
    <link:label xlink:label="ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts</link:label>
    <link:label xlink:label="ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract with Customer, Contracts in Progress, Number of Contracts Identified as Loss Contracts</link:label>
    <link:label xlink:label="ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of contracts in progress identified as loss contracts.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts" xlink:to="ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfStockholdersEquityAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_TechnologySolutionsMember" xlink:label="ftek_TechnologySolutionsMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_TechnologySolutionsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Technology Solutions [Member]</link:label>
    <link:label xlink:label="ftek_TechnologySolutionsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to the technology solutions product and services segment.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_TechnologySolutionsMember" xlink:to="ftek_TechnologySolutionsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_SparePartsMember" xlink:label="ftek_SparePartsMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_SparePartsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Spare Parts [Member]</link:label>
    <link:label xlink:label="ftek_SparePartsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to the spare parts product or services segment.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_SparePartsMember" xlink:to="ftek_SparePartsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Foreign currency translation adjustments (1)</link:label>
    <link:label xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock" xlink:label="ftek_LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="ftek_LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Operating Leases, Supplemental Cash Flow Information [Table Text Block]</link:label>
    <link:label xlink:label="ftek_LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of supplemental cash flow information related to operating leases of lessee.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock" xlink:to="ftek_LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:label="us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue from External Customers by Geographic Areas [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:to="us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:label="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LesseeOperatingLeaseRemainingLeaseTerm</link:label>
    <link:label xlink:label="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lessee, Operating Lease, Remaining Lease Term (Month)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm" xlink:to="us-gaap_LesseeOperatingLeaseRemainingLeaseTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_NumberOfOperatingLeases" xlink:label="ftek_NumberOfOperatingLeases" xlink:type="locator"/>
    <link:label xlink:label="ftek_NumberOfOperatingLeases-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_NumberOfOperatingLeases</link:label>
    <link:label xlink:label="ftek_NumberOfOperatingLeases-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Operating Leases</link:label>
    <link:label xlink:label="ftek_NumberOfOperatingLeases-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of operating lease arrangements.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_NumberOfOperatingLeases" xlink:to="ftek_NumberOfOperatingLeases-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_OperatingLeaseLiabilitiesTableTextBlock" xlink:label="ftek_OperatingLeaseLiabilitiesTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="ftek_OperatingLeaseLiabilitiesTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Lease Liabilities [Table Text Block]</link:label>
    <link:label xlink:label="ftek_OperatingLeaseLiabilitiesTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure for lessee's operating leases.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_OperatingLeaseLiabilitiesTableTextBlock" xlink:to="ftek_OperatingLeaseLiabilitiesTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherCurrentLiabilitiesTableTextBlock" xlink:label="us-gaap_OtherCurrentLiabilitiesTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherCurrentLiabilitiesTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Current Liabilities [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCurrentLiabilitiesTableTextBlock" xlink:to="us-gaap_OtherCurrentLiabilitiesTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:label="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring and Related Activities Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock" xlink:to="us-gaap_RestructuringAndRelatedActivitiesDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock" xlink:label="us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restructuring and Related Costs [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock" xlink:to="us-gaap_ScheduleOfRestructuringAndRelatedCostsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate</link:label>
    <link:label xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherLiabilitiesNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="us-gaap_OtherLiabilitiesNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ThePlacementAgentWarrantsMember" xlink:label="ftek_ThePlacementAgentWarrantsMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_ThePlacementAgentWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The Placement Agent Warrants [Member]</link:label>
    <link:label xlink:label="ftek_ThePlacementAgentWarrantsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the placement agent warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ThePlacementAgentWarrantsMember" xlink:to="ftek_ThePlacementAgentWarrantsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockholdersEquity</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total stockholders&#8217; equity</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Beginning balance</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Ending balance</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife" xlink:label="ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife" xlink:type="locator"/>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average remaining life (Year)</link:label>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The weighted average remaining life of warrants or rights.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife" xlink:to="ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ScheduleOfWarrantActivityTableTextBlock" xlink:label="ftek_ScheduleOfWarrantActivityTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="ftek_ScheduleOfWarrantActivityTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Warrant Activity [Table Text Block]</link:label>
    <link:label xlink:label="ftek_ScheduleOfWarrantActivityTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The tabular disclosure of activity in warrants outstanding.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ScheduleOfWarrantActivityTableTextBlock" xlink:to="ftek_ScheduleOfWarrantActivityTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementClassOfStockAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Stock [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_WarrantsDisclosureTextBlock" xlink:label="ftek_WarrantsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="ftek_WarrantsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Warrants Disclosure [Text Block]</link:label>
    <link:label xlink:label="ftek_WarrantsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The entire disclosure of warrants.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_WarrantsDisclosureTextBlock" xlink:to="ftek_WarrantsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ClassOfWarrantOrRightExercisedDuringPeriod" xlink:label="ftek_ClassOfWarrantOrRightExercisedDuringPeriod" xlink:type="locator"/>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Exercised (in shares)</link:label>
    <link:label xlink:label="ftek_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of warrants or rights exercised during period.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ClassOfWarrantOrRightExercisedDuringPeriod" xlink:to="ftek_ClassOfWarrantOrRightExercisedDuringPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="us-gaap_LongTermDebtNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LongTermDebtNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term borrowings</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtNoncurrent" xlink:to="us-gaap_LongTermDebtNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_The2014LongTermIncentivePlanMember" xlink:label="ftek_The2014LongTermIncentivePlanMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_The2014LongTermIncentivePlanMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The 2014 Long-term Incentive Plan [Member]</link:label>
    <link:label xlink:label="ftek_The2014LongTermIncentivePlanMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the 2014 long-term incentive plan.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_The2014LongTermIncentivePlanMember" xlink:to="ftek_The2014LongTermIncentivePlanMember-label" xlink:type="arc"/>
    <link:loc xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome" xlink:label="ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome" xlink:type="locator"/>
    <link:label xlink:label="ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome</link:label>
    <link:label xlink:label="ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-Based Compensation Arrangement By Share-based Payment Award, Performance Threshold, Operating Income</link:label>
    <link:label xlink:label="ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The threshold of operating income would trigger the vesting of share-based compensation awards.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome" xlink:to="ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_DeferredCompensationPlanForDirectorsMember" xlink:label="ftek_DeferredCompensationPlanForDirectorsMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_DeferredCompensationPlanForDirectorsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Compensation Plan for Directors [Member]</link:label>
    <link:label xlink:label="ftek_DeferredCompensationPlanForDirectorsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the deferred compensation plan for directors.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_DeferredCompensationPlanForDirectorsMember" xlink:to="ftek_DeferredCompensationPlanForDirectorsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_PaycheckProtectionProgramCaresActMember" xlink:label="ftek_PaycheckProtectionProgramCaresActMember" xlink:type="locator"/>
    <link:label xlink:label="ftek_PaycheckProtectionProgramCaresActMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Paycheck Protection Program CARES Act [Member]</link:label>
    <link:label xlink:label="ftek_PaycheckProtectionProgramCaresActMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents loan designed to provide funds for small businesses to keep their employees on the payroll.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_PaycheckProtectionProgramCaresActMember" xlink:to="ftek_PaycheckProtectionProgramCaresActMember-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount" xlink:label="ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount" xlink:type="locator"/>
    <link:label xlink:label="ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount</link:label>
    <link:label xlink:label="ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Discontinued Operations, Revenue, Remaining Performance Obligation, Amount</link:label>
    <link:label xlink:label="ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of remaining performance obligation associated with revenue from discontinued operations.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount" xlink:to="ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_NumberOfUnitsInstalled" xlink:label="ftek_NumberOfUnitsInstalled" xlink:type="locator"/>
    <link:label xlink:label="ftek_NumberOfUnitsInstalled-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_NumberOfUnitsInstalled</link:label>
    <link:label xlink:label="ftek_NumberOfUnitsInstalled-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number Of Units Installed</link:label>
    <link:label xlink:label="ftek_NumberOfUnitsInstalled-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of units installed.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ftek_NumberOfUnitsInstalled" xlink:to="ftek_NumberOfUnitsInstalled-label" xlink:type="arc"/>
    <link:loc xlink:href="ftek-20210930.xsd#ftek_ContractTerm" xlink:label="ftek_ContractTerm" xlink:type="locator"/>
    <link:label xlink:label="ftek_ContractTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ftek_ContractTerm</link:label>
    <link:label xlink:label="ftek_ContractTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contract Term (Month)</link:label>
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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>9
<FILENAME>ftek-20210930_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;1.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;General&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;b&gt;Organization&lt;/b&gt;&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech, Inc. and subsidiaries ("Fuel Tech", the "Company", "we", "us" or "our") develops and provides&#160;proprietary technologies for air pollution control, process optimization, water treatment, and advanced engineering services. These technologies enable customers to operate in a cost-effective and environmentally sustainable manner.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The Company&#x2019;s NOx reduction technologies reduce nitrogen oxide emissions from boilers, furnaces and other stationary combustion sources.&#160; To reduce NOx emissions, our technologies utilize advanced combustion modification techniques and post-combustion NOx control approaches including non-catalytic, catalytic and combined systems.&#160; The Company also&#160;provides solutions for the mitigation of particulate matter, including particulate control with electrostatic precipitator products and services, and using flue gas conditioning systems which modify the ash properties of particulate for improved collection efficiency. The Company&#x2019;s FUEL CHEM&#xae;&#160;technology improves the efficiency, reliability, fuel flexibility, boiler heat rate, and environmental status of combustion units by controlling slagging, fouling, corrosion, and opacity. Water treatment technologies include DGI&#x2122; Dissolved Gas Infusion Systems which utilize a patented nozzle to deliver supersaturated oxygen solutions and other gas-water combinations to target process applications or environmental issues. This infusion process has a variety of applications in the water and wastewater industries, including remediation, aeration, biological treatment, and wastewater odor management.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Many of Fuel Tech&#x2019;s products and services rely heavily on the Company&#x2019;s&#160;Computational Fluid Dynamics modeling capabilities, which are enhanced by internally developed, high-end visualization software.&lt;/p&gt;
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   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Basis of Presentation&lt;/b&gt;&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and with the instructions to Form &lt;em style="font: inherit;"&gt;10&lt;/em&gt;-Q and Article &lt;em style="font: inherit;"&gt;10&lt;/em&gt; of Regulation S-&lt;em style="font: inherit;"&gt;X&lt;/em&gt; of the Exchange Act. Accordingly, they do &lt;em style="font: inherit;"&gt;not&lt;/em&gt; include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the statements for the periods presented. All significant intercompany transactions and balances have been eliminated. The results of operations for the&#160;&lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; are &lt;em style="font: inherit;"&gt;not&lt;/em&gt; necessarily indicative of the results to be expected for the full year ending &lt;em style="font: inherit;"&gt; December&#160;&lt;/em&gt;&lt;em style="font: inherit;"&gt;31,&lt;/em&gt; &lt;em style="font: inherit;"&gt;2021.&lt;/em&gt; For further information, refer to the audited consolidated financial statements and footnotes thereto included in Fuel Tech&#x2019;s Annual Report on Form &lt;em style="font: inherit;"&gt;10&lt;/em&gt;-K for the year ended&#160;&lt;em style="font: inherit;"&gt; December 31, 2020&lt;/em&gt; as filed with the Securities and Exchange Commission.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;b&gt;COVID-&lt;em style="font: inherit;"&gt;19&lt;/em&gt; Pandemic&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The effects&#160;of the coronavirus (COVID-&lt;em style="font: inherit;"&gt;19&lt;/em&gt;) global pandemic has presented&#160;significant risks to the Company, &lt;em style="font: inherit;"&gt;not&lt;/em&gt; all of which the Company is able to fully evaluate or even foresee at the current time. Although the impact of the pandemic is difficult to quantify, the Company has experienced, and &lt;em style="font: inherit;"&gt; may &lt;/em&gt;continue to experience, reductions in demand for certain of our products&#160;due to the delay or abandonment of ongoing or anticipated projects due to our customers&#x2019;, suppliers&#x2019; and other &lt;em style="font: inherit;"&gt;third&lt;/em&gt; parties&#x2019; financial distress or concern regarding the volatility of global markets.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Management cannot predict the full impact of the COVID-&lt;em style="font: inherit;"&gt;19&lt;/em&gt; pandemic on the Company&#x2019;s sales and marketing channels and supply chain, and as a result, the ultimate extent of the effects of the COVID-&lt;em style="font: inherit;"&gt;19&lt;/em&gt; pandemic on the Company is highly uncertain and will depend on future developments. Such effects could exist for an extended period of time even after the pandemic might end.&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;b&gt;Private Placement Offering&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;On &lt;em style="font: inherit;"&gt; February 11, 2021, &lt;/em&gt;Fuel Tech entered into a securities purchase agreement&#160;to issue and sell, in a private placement, 5,000,000 shares of Common Stock&#160;and 2,500,000 warrants exercisable for a total of 2,500,000 shares of Common Stock with an exercise price of $5.10 per Warrant Share, at a purchase price of $5.1625 per Share and associated warrant. The gross proceeds to the Company from the Private Placement were&#160;$25,812, before deducting placement agent fees and offering expenses of $1,783. Subject to certain ownership limitations, the Warrants are immediately exercisable upon issuance and expire on the &lt;span style="-sec-ix-hidden:c78771449"&gt;five&lt;/span&gt; and &lt;em style="font: inherit;"&gt;one&lt;/em&gt;-half year anniversary of the effective date of the registration statement registering the Warrant Shares for resale.&#160; In addition, the Company issued to the placement agent Warrants to purchase up to 350,000 shares of Common Stock.&#160; The Placement Agent Warrants are exercisable at an exercise price of $6.45&#160;per share of Common Stock and expire on the &lt;span style="-sec-ix-hidden:c78771453"&gt;five&lt;/span&gt; and &lt;em style="font: inherit;"&gt;one&lt;/em&gt;-half year anniversary of the effective date of the registration statement registering the Shares and the Warrant Shares for resale.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;


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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;2.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Summary of Significant Accounting Policies&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b/&gt;&lt;/p&gt;&lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Restricted cash&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Restricted cash as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; represents funds that are restricted to satisfy any amount borrowed against the Company's Cash Collateral Security agreement with BMO Harris Bank N.A. The balance of restricted cash totaling $1,161&#160;is comprised of $891&#160;in current assets relating to existing standby letters of credit with varying maturity dates and expire &lt;em style="font: inherit;"&gt;no&lt;/em&gt; later than &lt;em style="font: inherit;"&gt; September 30, 2022&#160;&lt;/em&gt;and $270&#160;in long-term assets will remain through the expiration dates of the underlying standby letter of credits (the latest maturity date is &lt;em style="font: inherit;"&gt; February 1, 2023) &lt;/em&gt;with BMO Harris Bank N.A. Refer to Note &lt;em style="font: inherit;"&gt;10&lt;/em&gt;&#160;Debt Financing for further information on the Cash Collateral Security agreement with BMO Harris Bank N.A.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cash and cash equivalents&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;35,161&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;9,418&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Restricted cash included in current assets&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;891&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,025&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Restricted cash included in long-term assets&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;270&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;367&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;36,322&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;11,810&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;&lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"/&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b/&gt;&lt;/p&gt;&lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Leases&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The Company applies the provisions of Accounting Standards Codification ("ASC") &lt;em style="font: inherit;"&gt;842,&lt;/em&gt;&#160;Leases.&#160; The Company determines if an arrangement is a lease at inception by evaluating whether the arrangement conveys the right to use an identified asset and whether the Company obtains substantially all of the economic benefits from and has the ability to direct the use of the asset. Right-of-use ("ROU") assets and lease liabilities are recognized at the lease commencement date based on the present value of the future minimum lease payments over the lease term. Operating ROU assets also include the impact of any lease incentives. Operating leases are included in right-of-use operating lease assets, operating lease liabilities - current, and operating lease liabilities - non-current on our Condensed Consolidated Balance Sheets.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do &lt;em style="font: inherit;"&gt;not&lt;/em&gt; provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms &lt;em style="font: inherit;"&gt; may &lt;/em&gt;include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;We have lease agreements with lease and non-lease components, and we elected the practical expedient to &lt;em style="font: inherit;"&gt;not&lt;/em&gt; separate lease and non-lease components for the majority of our leases. For certain equipment leases, such as vehicles, we account for the lease and non-lease components as a single lease component. We also elected the practical expedient to keep leases with an initial term of &lt;em style="font: inherit;"&gt;12&lt;/em&gt; months or less off of the Condensed Consolidated Balance Sheet.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;&lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"/&gt;
  </us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy contextRef="d_2021-01-01_2021-09-30" id="c78773608">&lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Restricted cash&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Restricted cash as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; represents funds that are restricted to satisfy any amount borrowed against the Company's Cash Collateral Security agreement with BMO Harris Bank N.A. The balance of restricted cash totaling $1,161&#160;is comprised of $891&#160;in current assets relating to existing standby letters of credit with varying maturity dates and expire &lt;em style="font: inherit;"&gt;no&lt;/em&gt; later than &lt;em style="font: inherit;"&gt; September 30, 2022&#160;&lt;/em&gt;and $270&#160;in long-term assets will remain through the expiration dates of the underlying standby letter of credits (the latest maturity date is &lt;em style="font: inherit;"&gt; February 1, 2023) &lt;/em&gt;with BMO Harris Bank N.A. Refer to Note &lt;em style="font: inherit;"&gt;10&lt;/em&gt;&#160;Debt Financing for further information on the Cash Collateral Security agreement with BMO Harris Bank N.A.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cash and cash equivalents&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;35,161&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;9,418&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Restricted cash included in current assets&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;891&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,025&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Restricted cash included in long-term assets&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;270&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;367&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;36,322&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;11,810&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;</us-gaap:CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy>
    <us-gaap:RestrictedCashAndCashEquivalents
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771464"
      unitRef="USD">1161000</us-gaap:RestrictedCashAndCashEquivalents>
    <us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771466"
      unitRef="USD">891000</us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsNoncurrent
      contextRef="i_2021-09-30"
      decimals="-4"
      id="c78771468"
      unitRef="USD">270000</us-gaap:RestrictedCashAndCashEquivalentsNoncurrent>
    <us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981251">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cash and cash equivalents&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;35,161&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;9,418&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Restricted cash included in current assets&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;891&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,025&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Restricted cash included in long-term assets&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;270&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;367&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;36,322&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;11,810&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;
   </us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771478"
      unitRef="USD">35161000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:CashAndCashEquivalentsAtCarryingValue
      contextRef="i_2020-09-30"
      decimals="-3"
      id="c78771479"
      unitRef="USD">9418000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771480"
      unitRef="USD">891000</us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue
      contextRef="i_2020-09-30"
      decimals="-3"
      id="c78771481"
      unitRef="USD">2025000</us-gaap:RestrictedCashAndCashEquivalentsAtCarryingValue>
    <us-gaap:RestrictedCashAndCashEquivalentsNoncurrent
      contextRef="i_2021-09-30"
      decimals="-4"
      id="c78771482"
      unitRef="USD">270000</us-gaap:RestrictedCashAndCashEquivalentsNoncurrent>
    <us-gaap:RestrictedCashAndCashEquivalentsNoncurrent
      contextRef="i_2020-09-30"
      decimals="-3"
      id="c78771483"
      unitRef="USD">367000</us-gaap:RestrictedCashAndCashEquivalentsNoncurrent>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771484"
      unitRef="USD">36322000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
      contextRef="i_2020-09-30"
      decimals="-4"
      id="c78771485"
      unitRef="USD">11810000</us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents>
    <us-gaap:LesseeLeasesPolicyTextBlock contextRef="d_2021-01-01_2021-09-30" id="c78773609">&lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Leases&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The Company applies the provisions of Accounting Standards Codification ("ASC") &lt;em style="font: inherit;"&gt;842,&lt;/em&gt;&#160;Leases.&#160; The Company determines if an arrangement is a lease at inception by evaluating whether the arrangement conveys the right to use an identified asset and whether the Company obtains substantially all of the economic benefits from and has the ability to direct the use of the asset. Right-of-use ("ROU") assets and lease liabilities are recognized at the lease commencement date based on the present value of the future minimum lease payments over the lease term. Operating ROU assets also include the impact of any lease incentives. Operating leases are included in right-of-use operating lease assets, operating lease liabilities - current, and operating lease liabilities - non-current on our Condensed Consolidated Balance Sheets.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do &lt;em style="font: inherit;"&gt;not&lt;/em&gt; provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms &lt;em style="font: inherit;"&gt; may &lt;/em&gt;include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;We have lease agreements with lease and non-lease components, and we elected the practical expedient to &lt;em style="font: inherit;"&gt;not&lt;/em&gt; separate lease and non-lease components for the majority of our leases. For certain equipment leases, such as vehicles, we account for the lease and non-lease components as a single lease component. We also elected the practical expedient to keep leases with an initial term of &lt;em style="font: inherit;"&gt;12&lt;/em&gt; months or less off of the Condensed Consolidated Balance Sheet.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;</us-gaap:LesseeLeasesPolicyTextBlock>
    <us-gaap:RevenueFromContractWithCustomerTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981252">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;3.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Revenue&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The Company recognizes revenue when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Fuel Tech&#x2019;s sales of products to customers generally represent single performance obligations. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is &lt;em style="font: inherit;"&gt;not&lt;/em&gt; separately identifiable from other promises in the contracts and, therefore, &lt;em style="font: inherit;"&gt;not&lt;/em&gt; distinct. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Sales, value add, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;


   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;We generally expense sales commissions on a ratable basis when incurred because the amortization period would have been &lt;em style="font: inherit;"&gt;one&lt;/em&gt; year or less. These costs are recorded within selling, general and administrative expenses within the Condensed Consolidated Statements of Operations.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Air Pollution Control Technology&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech&#x2019;s Air Pollution Control (&#x201c;APC&#x201d;) contracts are typically &lt;span style="-sec-ix-hidden:c78771491"&gt;six&lt;/span&gt; to &lt;span style="-sec-ix-hidden:c78771492"&gt;eighteen&lt;/span&gt; months in length. A typical contract will have &lt;em style="font: inherit;"&gt;three&lt;/em&gt; or &lt;em style="font: inherit;"&gt;four&lt;/em&gt; critical operational measurements that, when achieved, serve as the basis for us to invoice the customer via progress billings. At a minimum, these measurements will include the generation of engineering drawings, the shipment of equipment and the completion of a system performance test.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;As part of most of its contractual APC project agreements, Fuel Tech will agree to customer-specific acceptance criteria that relate to the operational performance of the system that is being sold. These criteria are determined based on modeling that is performed by Fuel Tech personnel, which is based on operational inputs that are provided by the customer. The customer will warrant that these operational inputs are accurate as they are specified in the binding contractual agreement. Further, the customer is solely responsible for the accuracy of the operating condition information; typically all performance guarantees and equipment warranties granted by us are voidable if the operating condition information is inaccurate or is &lt;em style="font: inherit;"&gt;not&lt;/em&gt; met.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Since control transfers over time, revenue is recognized based on the extent of progress towards completion of the single performance obligation. Fuel Tech uses the cost-to-cost input measure of progress for our contracts since it best depicts the transfer of assets to the customer which occurs as we incur costs on our contracts. Under the cost-to-cost input measure of progress, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recorded proportionally as costs are incurred. Costs to fulfill include all internal and external engineering costs, equipment charges, inbound and outbound freight expenses, internal and site transfer costs, installation charges, purchasing and receiving costs, inspection costs, warehousing costs, project personnel travel expenses and other direct and indirect expenses specifically identified as project- or product-line related, as appropriate (e.g. test equipment depreciation and certain insurance expenses).&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;Fuel Tech&#x2019;s APC product line also includes ancillary revenue for post contractual goods and services.&#160; Revenue associated with these activities are recognized at point in time when delivery of goods or completion of the service obligation is performed.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech has installed over 1,200 units with APC technology and normally provides performance guarantees to our customers based on the operating conditions for the project. As part of the project implementation process, we perform system start-up and optimization services that effectively serve as a test of actual project performance. We believe that this test, combined with the accuracy of the modeling that is performed, enables revenue to be recognized prior to the receipt of formal customer acceptance.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;FUEL CHEM&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Revenues from the sale of chemical products are recognized when control transfers to customer upon shipment or delivery of the product based on the applicable shipping terms. We generally recognize revenue for these arrangements at a point in time based on our evaluation of when the customer obtains control of the promised goods or services.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;On occasion, Fuel Tech will engineer and sell its chemical pumping equipment.&#160; These projects are similar in nature to the APC projects described above and for those project where control transfers over time,&#160;revenue is recognized&#160;based on the extent of progress towards completion of the single performance obligation.&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;For projects containing multiple performance obligations, the Company allocates the transaction price based on the estimated standalone selling price. The Company must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. The Company utilizes key assumptions to determine the stand-alone selling price, which &lt;em style="font: inherit;"&gt; may &lt;/em&gt;include other comparable transactions, pricing considered in negotiating the transaction and the estimated costs. Variable consideration is allocated specifically to &lt;em style="font: inherit;"&gt;one&lt;/em&gt; or more performance obligations in a contract when the terms of the variable consideration relate to the satisfaction of the performance obligation and the resulting amounts allocated are consistent with the amounts the Company would expect to receive for the satisfaction of each performance obligation.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"&gt;The consideration allocated to each performance obligation is recognized as revenue when control is transferred for the related goods or services. For performance obligations which consist of licenses and other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"&gt;The Company receives payments from its customers based on billing schedules established in each contract. Up-front payments and fees are recorded as deferred revenue upon receipt or when due until the Company performs its obligations under these arrangements. Amounts are recorded as accounts receivable when the Company&#x2019;s right to consideration is unconditional.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;


   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Disaggregated Revenue by Product Technology&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The following table presents our revenues disaggregated by product technology:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Air Pollution Control&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Technology solutions&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,172&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,326&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,768&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;4,524&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Spare parts&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;407&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;254&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;823&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;667&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Ancillary revenue&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;365&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;306&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;1,246&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;828&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Air Pollution Control Technology revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,944&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,886&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;3,837&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,019&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;FUEL CHEM&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;FUEL CHEM technology solutions&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,615&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,269&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;13,973&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;10,315&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Disaggregated Revenue by Geography&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The following table presents our revenues disaggregated by geography, based on the billing addresses of our customers:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;United States&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,049&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,473&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;15,100&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;12,880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Foreign Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Latin America&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;121&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;195&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;338&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;400&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Europe&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;663&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;904&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;1,339&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,494&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Asia&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;726&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;1,033&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,560&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Foreign Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,510&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,682&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;2,710&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3,454&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Timing of Revenue Recognition&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The following table presents the timing of our revenue recognition:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Products transferred at a point in time&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,387&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,108&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;16,042&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;11,089&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Products and services transferred over time&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,172&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3,047&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;1,768&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,245&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;


   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Contract Balances&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the consolidated balance sheets. In our Air Pollution Control Technology segment, amounts are billed as work progresses in accordance with agreed-upon contractual terms. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. For the FUEL CHEM technology segment, deliveries made in the current period but billed in subsequent periods are also considered unbilled receivables (contract assets).&#160; These assets are reported on the&#160;consolidated balance sheet on a contract-by-contract basis at the end of each reporting period. &#160;At &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; and &lt;em style="font: inherit;"&gt; December 31, 2020&lt;/em&gt;, contract assets for APC technology projects were approximately $375&#160;and $2,080, respectively, and $0&#160;and $269, respectively, for the FUEL CHEM technology segment, and are included in accounts receivable on the condensed consolidated balance sheets.&#160;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;However, the Company will periodically bill in advance of costs incurred before revenue is recognized, resulting in contract liabilities. These liabilities are reported on the consolidated balance sheet on a contract-by-contract basis at the end of each reporting period. Contract liabilities were $1,246&#160;and $850, at &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; and &lt;em style="font: inherit;"&gt; December 31, 2020&lt;/em&gt;, respectively, and are included in other accrued liabilities on the consolidated balance sheets.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Changes in the contract asset and liability balances during the&#160;&lt;em style="font: inherit;"&gt;nine&lt;/em&gt; month period ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, were &lt;em style="font: inherit;"&gt;not&lt;/em&gt; materially impacted by any other items other than amounts billed and revenue recognized as described previously. Revenue recognized that was included in the contract liability balance at the beginning of the period was $173&#160;and $331&#160;for the &lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, and $97&#160;and $555&#160;for &lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2020&lt;/em&gt;, which represented primarily revenue from progress towards completion of our Air Pollution Control technology contracts.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;As of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, we had no construction contracts in progress that were identified as a loss contract. As of &lt;em style="font: inherit;"&gt; December 31, 2020&lt;/em&gt;, we had one construction contract in progress that was identified as a loss contract&#160;and a provision for losses in the amount of $176&#160;was recorded in other accrued liabilities on the consolidated balance sheet.&#160;Refer to Footnote &lt;em style="font: inherit;"&gt;14&lt;/em&gt;&#160;for an accrual related to an equipment failure&#160;issue&#160;with a Customer that requires remedy under the warranty provision of the customer contract.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Remaining Performance Obligations&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Remaining performance obligations represents the transaction price of Air Pollution Control technology booked orders for which work has &lt;em style="font: inherit;"&gt;not&lt;/em&gt; been performed. As of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, the aggregate amount of the transaction price allocated to remaining performance obligations was $8,173. The Company expects to recognize revenue on approximately $5,517&#160;of the remaining performance obligations over the next 12 months with the remaining recognized thereafter.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;Accounts Receivable&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;The components of accounts receivable are as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Trade receivables&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,423&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,015&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unbilled receivables&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;375&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,348&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Other short-term receivables&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;102&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;20&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Allowance for doubtful accounts&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(838&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(835&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total accounts receivable&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;5,062&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;6,548&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;


  </us-gaap:RevenueFromContractWithCustomerTextBlock>
    <ftek:NumberOfUnitsInstalled
      contextRef="i_2021-09-30"
      decimals="INF"
      id="c78771496"
      unitRef="Pure">1200</ftek:NumberOfUnitsInstalled>
    <us-gaap:DisaggregationOfRevenueTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981253">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Air Pollution Control&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Technology solutions&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,172&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,326&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,768&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;4,524&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Spare parts&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;407&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;254&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;823&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;667&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Ancillary revenue&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;365&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;306&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;1,246&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;828&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Air Pollution Control Technology revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,944&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,886&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;3,837&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,019&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;FUEL CHEM&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;FUEL CHEM technology solutions&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,615&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,269&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;13,973&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;10,315&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:DisaggregationOfRevenueTableTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771538"
      unitRef="USD">1172000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771539"
      unitRef="USD">2326000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771540"
      unitRef="USD">1768000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771541"
      unitRef="USD">4524000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771542"
      unitRef="USD">407000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771543"
      unitRef="USD">254000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771544"
      unitRef="USD">823000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-SparePartsMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771545"
      unitRef="USD">667000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771546"
      unitRef="USD">365000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771547"
      unitRef="USD">306000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771548"
      unitRef="USD">1246000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-AncillaryRevenueMember_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771549"
      unitRef="USD">828000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771550"
      unitRef="USD">1944000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771551"
      unitRef="USD">2886000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771552"
      unitRef="USD">3837000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771553"
      unitRef="USD">6019000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771555"
      unitRef="USD">5615000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771556"
      unitRef="USD">5269000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771557"
      unitRef="USD">13973000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_ProductOrServiceAxis-TechnologySolutionsMember_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771558"
      unitRef="USD">10315000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78771559"
      unitRef="USD">7559000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78771560"
      unitRef="USD">8155000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-4"
      id="c78771561"
      unitRef="USD">17810000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78771562"
      unitRef="USD">16334000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;United States&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,049&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,473&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;15,100&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;12,880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Foreign Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Latin America&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;121&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;195&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;338&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;400&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Europe&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;663&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;904&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;1,339&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,494&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Asia&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;726&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;1,033&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,560&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Foreign Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,510&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,682&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;2,710&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3,454&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:RevenueFromExternalCustomersByGeographicAreasTableTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-US"
      decimals="-3"
      id="c78771575"
      unitRef="USD">6049000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-US"
      decimals="-3"
      id="c78771576"
      unitRef="USD">6473000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-US"
      decimals="-5"
      id="c78771577"
      unitRef="USD">15100000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-US"
      decimals="-4"
      id="c78771578"
      unitRef="USD">12880000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-LatinAmericaMember"
      decimals="-3"
      id="c78771580"
      unitRef="USD">121000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-LatinAmericaMember"
      decimals="-3"
      id="c78771581"
      unitRef="USD">195000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-LatinAmericaMember"
      decimals="-3"
      id="c78771582"
      unitRef="USD">338000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-LatinAmericaMember"
      decimals="-5"
      id="c78771583"
      unitRef="USD">400000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-EuropeMember"
      decimals="-3"
      id="c78771584"
      unitRef="USD">663000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-EuropeMember"
      decimals="-3"
      id="c78771585"
      unitRef="USD">904000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-EuropeMember"
      decimals="-3"
      id="c78771586"
      unitRef="USD">1339000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-EuropeMember"
      decimals="-3"
      id="c78771587"
      unitRef="USD">1494000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-AsiaMember"
      decimals="-3"
      id="c78771588"
      unitRef="USD">726000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-AsiaMember"
      decimals="-3"
      id="c78771589"
      unitRef="USD">583000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-AsiaMember"
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      id="c78771590"
      unitRef="USD">1033000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-AsiaMember"
      decimals="-4"
      id="c78771591"
      unitRef="USD">1560000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-4"
      id="c78771592"
      unitRef="USD">1510000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-3"
      id="c78771593"
      unitRef="USD">1682000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-4"
      id="c78771594"
      unitRef="USD">2710000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-3"
      id="c78771595"
      unitRef="USD">3454000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78771596"
      unitRef="USD">7559000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78771597"
      unitRef="USD">8155000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-4"
      id="c78771598"
      unitRef="USD">17810000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78771599"
      unitRef="USD">16334000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981255">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Products transferred at a point in time&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,387&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,108&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;16,042&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;11,089&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Products and services transferred over time&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,172&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3,047&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;1,768&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,245&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total Revenues&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember"
      decimals="-3"
      id="c78771612"
      unitRef="USD">6387000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember"
      decimals="-3"
      id="c78771613"
      unitRef="USD">5108000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember"
      decimals="-3"
      id="c78771614"
      unitRef="USD">16042000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredAtPointInTimeMember"
      decimals="-3"
      id="c78771615"
      unitRef="USD">11089000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember"
      decimals="-3"
      id="c78771616"
      unitRef="USD">1172000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember"
      decimals="-3"
      id="c78771617"
      unitRef="USD">3047000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember"
      decimals="-3"
      id="c78771618"
      unitRef="USD">1768000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_TimingOfTransferOfGoodOrServiceAxis-TransferredOverTimeMember"
      decimals="-3"
      id="c78771619"
      unitRef="USD">5245000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78771620"
      unitRef="USD">7559000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78771621"
      unitRef="USD">8155000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-4"
      id="c78771622"
      unitRef="USD">17810000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78771623"
      unitRef="USD">16334000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:ContractWithCustomerAssetNet
      contextRef="i_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771500"
      unitRef="USD">375000</us-gaap:ContractWithCustomerAssetNet>
    <us-gaap:ContractWithCustomerAssetNet
      contextRef="i_2020-12-31_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-4"
      id="c78771501"
      unitRef="USD">2080000</us-gaap:ContractWithCustomerAssetNet>
    <us-gaap:ContractWithCustomerAssetNet
      contextRef="i_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771502"
      unitRef="USD">0</us-gaap:ContractWithCustomerAssetNet>
    <us-gaap:ContractWithCustomerAssetNet
      contextRef="i_2020-12-31_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771503"
      unitRef="USD">269000</us-gaap:ContractWithCustomerAssetNet>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771504"
      unitRef="USD">1246000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i_2020-12-31"
      decimals="-4"
      id="c78771505"
      unitRef="USD">850000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78771508"
      unitRef="USD">173000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-3"
      id="c78771509"
      unitRef="USD">331000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78771512"
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      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78771513"
      unitRef="USD">555000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
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      contextRef="i_2021-09-30"
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      unitRef="Pure">0</ftek:ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts>
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      contextRef="i_2020-12-31"
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      id="c78771517"
      unitRef="Pure">1</ftek:ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts>
    <us-gaap:ProvisionForLossOnContracts
      contextRef="i_2020-12-31"
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      id="c78771518"
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    <us-gaap:RevenueRemainingPerformanceObligation
      contextRef="i_2021-09-30"
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      id="c78771521"
      unitRef="USD">8173000</us-gaap:RevenueRemainingPerformanceObligation>
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      contextRef="i_2021-09-30_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis-RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain-2021-10-01"
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      id="c78771522"
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      contextRef="i_2021-09-30_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis-RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain-2021-10-01"
      id="c78771523">P12M</us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1>
    <us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981256">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Trade receivables&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,423&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,015&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unbilled receivables&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;375&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,348&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Other short-term receivables&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;102&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;20&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Allowance for doubtful accounts&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(838&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(835&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total accounts receivable&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;5,062&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;6,548&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
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   </us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock>
    <us-gaap:AccountsReceivableGrossCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771628"
      unitRef="USD">5423000</us-gaap:AccountsReceivableGrossCurrent>
    <us-gaap:AccountsReceivableGrossCurrent
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78771629"
      unitRef="USD">5015000</us-gaap:AccountsReceivableGrossCurrent>
    <us-gaap:UnbilledReceivablesCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771630"
      unitRef="USD">375000</us-gaap:UnbilledReceivablesCurrent>
    <us-gaap:UnbilledReceivablesCurrent
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78771631"
      unitRef="USD">2348000</us-gaap:UnbilledReceivablesCurrent>
    <us-gaap:AccountsAndOtherReceivablesNetCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771632"
      unitRef="USD">102000</us-gaap:AccountsAndOtherReceivablesNetCurrent>
    <us-gaap:AccountsAndOtherReceivablesNetCurrent
      contextRef="i_2020-12-31"
      decimals="-4"
      id="c78771633"
      unitRef="USD">20000</us-gaap:AccountsAndOtherReceivablesNetCurrent>
    <us-gaap:AllowanceForDoubtfulAccountsReceivable
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771634"
      unitRef="USD">838000</us-gaap:AllowanceForDoubtfulAccountsReceivable>
    <us-gaap:AllowanceForDoubtfulAccountsReceivable
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78771635"
      unitRef="USD">835000</us-gaap:AllowanceForDoubtfulAccountsReceivable>
    <us-gaap:AccountsReceivableNetCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78771636"
      unitRef="USD">5062000</us-gaap:AccountsReceivableNetCurrent>
    <us-gaap:AccountsReceivableNetCurrent
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78771637"
      unitRef="USD">6548000</us-gaap:AccountsReceivableNetCurrent>
    <us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981257">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;4.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Restructuring Activities&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;i&gt;&#160;&lt;/i&gt;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;On &lt;em style="font: inherit;"&gt; January 18, 2019, &lt;/em&gt;the Company announced a planned suspension of its Air Pollution Control (&#x201c;APC&#x201d;) business operation in China. This action was part of Fuel Tech&#x2019;s ongoing operational improvement initiatives designed to prioritize resource allocation, reduce costs, and drive profitability for the Company on a global basis. The transition associated with the suspension of the APC business which has taken place through &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; includes staff rationalization and reduction, supplier and partner engagement, and the monetization of certain assets. The remaining transition activities include the execution of the activities to satisfy the requirements for the remaining APC projects in China (with a backlog totaling approximately $10) in addition to collection efforts for the remaining accounts receivable.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The following table presents our revenues and net income (loss) which includes the Restructuring charge line item within the Condensed Statements of Operations for&#160;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt; and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt; in China as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total revenues&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;17&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;11&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Net loss&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(47&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(73&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;(85&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(31&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;Total assets primarily consist of cash, accounts receivable, contract assets, prepaid expenses and other current assets. Total liabilities consist of accounts payable and certain accrued liabilities.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The following table presents net assets in China as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total assets&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,444&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,463&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;290&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;396&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total net assets&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;1,154&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,067&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;&#160;&lt;/p&gt;


  </us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock>
    <ftek:DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount
      contextRef="i_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-4"
      id="c78771639"
      unitRef="USD">10000</ftek:DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount>
    <us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock
      contextRef="d_2021-01-01_2021-09-30"
      id="c0ACADA6F-4A83-4766-95F0-3D140A498028">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total revenues&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;17&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;11&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Net loss&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(47&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(73&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;(85&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(31&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total assets&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,444&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,463&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;290&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;396&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total net assets&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;1,154&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,067&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:ScheduleOfRestructuringAndRelatedCostsTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771656"
      unitRef="USD">2000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771657"
      unitRef="USD">6000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771658"
      unitRef="USD">17000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771659"
      unitRef="USD">11000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:NetIncomeLoss
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771660"
      unitRef="USD">-47000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771661"
      unitRef="USD">-73000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771662"
      unitRef="USD">-85000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771663"
      unitRef="USD">-31000</us-gaap:NetIncomeLoss>
    <us-gaap:Assets
      contextRef="i_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771668"
      unitRef="USD">1444000</us-gaap:Assets>
    <us-gaap:Assets
      contextRef="i_2020-12-31_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771669"
      unitRef="USD">2463000</us-gaap:Assets>
    <us-gaap:Liabilities
      contextRef="i_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-4"
      id="c78771670"
      unitRef="USD">290000</us-gaap:Liabilities>
    <us-gaap:Liabilities
      contextRef="i_2020-12-31_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771671"
      unitRef="USD">396000</us-gaap:Liabilities>
    <us-gaap:AssetsNet
      contextRef="i_2021-09-30_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771672"
      unitRef="USD">1154000</us-gaap:AssetsNet>
    <us-gaap:AssetsNet
      contextRef="i_2020-12-31_StatementGeographicalAxis-CN"
      decimals="-3"
      id="c78771673"
      unitRef="USD">2067000</us-gaap:AssetsNet>
    <us-gaap:ComprehensiveIncomeNoteTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981260">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;5.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Accumulated Other Comprehensive Loss&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The changes in accumulated other comprehensive loss by component were as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Foreign currency translation&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Balance at beginning of period&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,430&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,857&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,370&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,778&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Other comprehensive income (loss):&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Foreign currency translation adjustments (1)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(153&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;268&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(213&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;189&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total accumulated other comprehensive loss&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,589&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,589&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;"&gt;(&lt;em style="font: inherit;"&gt;1&lt;/em&gt;)&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;"&gt;In all periods presented, there were &lt;em style="font: inherit;"&gt;no&lt;/em&gt; tax impacts related to rate changes and &lt;em style="font: inherit;"&gt;no&lt;/em&gt; amounts were reclassified to earnings.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:36pt;margin-right:0pt;margin-top:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
  </us-gaap:ComprehensiveIncomeNoteTextBlock>
    <us-gaap:ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981261">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Foreign currency translation&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Balance at beginning of period&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,430&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,857&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,370&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(1,778&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Other comprehensive income (loss):&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Foreign currency translation adjustments (1)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(153&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;268&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(213&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;189&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;&lt;b&gt;Total accumulated other comprehensive loss&lt;/b&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,589&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,589&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
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    <us-gaap:StockholdersEquity
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      decimals="-4"
      id="c78771691"
      unitRef="USD">-1430000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i_2020-06-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771692"
      unitRef="USD">-1857000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i_2020-12-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-4"
      id="c78771693"
      unitRef="USD">-1370000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i_2019-12-31_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771694"
      unitRef="USD">-1778000</us-gaap:StockholdersEquity>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="d_2021-07-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771696"
      unitRef="USD">-153000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="d_2020-07-01_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771697"
      unitRef="USD">268000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="d_2021-01-01_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
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      id="c78771698"
      unitRef="USD">-213000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
      contextRef="d_2020-01-01_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771699"
      unitRef="USD">189000</us-gaap:OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent>
    <us-gaap:StockholdersEquity
      contextRef="i_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771700"
      unitRef="USD">-1583000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771701"
      unitRef="USD">-1589000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i_2021-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771702"
      unitRef="USD">-1583000</us-gaap:StockholdersEquity>
    <us-gaap:StockholdersEquity
      contextRef="i_2020-09-30_StatementEquityComponentsAxis-AccumulatedOtherComprehensiveIncomeMember"
      decimals="-3"
      id="c78771703"
      unitRef="USD">-1589000</us-gaap:StockholdersEquity>
    <us-gaap:TreasuryStockTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981262">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;6.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Treasury Stock&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Common stock held in treasury totaled 963,509&#160;and 948,347&#160;with a cost of $2,234&#160;and $2,182&#160;at &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; and &lt;em style="font: inherit;"&gt; December 31, 2020&lt;/em&gt;, respectively. These shares were withheld from employees to settle personal tax withholding obligations that arose as a result of restricted stock units that vested in the periods presented.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
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      contextRef="i_2021-09-30"
      decimals="INF"
      id="c78771705"
      unitRef="Share">963509</us-gaap:TreasuryStockShares>
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      contextRef="i_2020-12-31"
      decimals="INF"
      id="c78771706"
      unitRef="Share">948347</us-gaap:TreasuryStockShares>
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      id="c78771707"
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    <us-gaap:TreasuryStockValue
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78771708"
      unitRef="USD">2182000</us-gaap:TreasuryStockValue>
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;7.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Earnings per Share&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Basic earnings per share excludes the dilutive effects of stock options, restricted stock units (RSUs), warrants, and the &lt;em style="font: inherit;"&gt;nil&lt;/em&gt; coupon non-redeemable convertible unsecured loan notes. Diluted earnings per share includes the dilutive effect of the &lt;em style="font: inherit;"&gt;nil&lt;/em&gt; coupon non-redeemable convertible unsecured loan notes, RSUs, warrants, and unexercised in-the-money stock options, except in periods of net loss where the effect of these instruments is anti-dilutive. Out-of-money stock options and warrants are excluded from diluted earnings per share because they are anti-dilutive.&#160;&#160;For the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2020,&#160;&lt;/em&gt;basic earnings per share is equal to diluted earnings per share because all outstanding stock awards and convertible loan notes are considered anti-dilutive during periods of net loss.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The following table sets forth the weighted-average shares used in calculating the earnings per share for the &lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt;.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Basic weighted-average shares&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;30,264,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;24,701,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;29,356,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;24,656,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Conversion of unsecured loan notes&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unexercised options and unvested RSUs&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;71,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;419,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;126,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Diluted weighted-average shares&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;30,335,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;25,120,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); text-align: right;"&gt;29,482,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;24,656,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;For the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; month period ended &lt;em style="font: inherit;"&gt; September 30, 2020, &lt;/em&gt;Fuel Tech had 520,000&#160;outstanding equity awards&#160;that were excluded from&#160;the&#160;computation&#160;of&#160;diluted&#160;EPS&#160;as&#160;the inclusion&#160;of&#160;such&#160;would&#160;have&#160;been&#160;anti-dilutive due to a net loss in the period.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;


  </us-gaap:EarningsPerShareTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981264">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Basic weighted-average shares&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;30,264,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;24,701,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;29,356,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;24,656,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Conversion of unsecured loan notes&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unexercised options and unvested RSUs&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;71,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;419,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;126,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
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       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Diluted weighted-average shares&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;30,335,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;25,120,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); text-align: right;"&gt;29,482,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;24,656,000&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;8.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Stock-Based Compensation&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Under our stock-based employee compensation plan, referred to as the Fuel Tech, Inc. &lt;em style="font: inherit;"&gt;2014&lt;/em&gt; Long-Term Incentive Plan (Incentive Plan), awards &lt;em style="font: inherit;"&gt; may &lt;/em&gt;be granted to participants in the form of Non-Qualified Stock Options, Incentive Stock Options, Stock Appreciation Rights, Restricted Stock, Restricted Stock Units (&#x201c;RSUs&#x201d;), Performance Awards, Bonuses or other forms of share-based or non-share-based awards or combinations thereof. Participants in the Incentive Plan &lt;em style="font: inherit;"&gt; may &lt;/em&gt;be our directors, officers, employees, consultants or advisors (except consultants or advisors in capital-raising transactions) as the directors determine are key to the success of our business. There are a maximum of 5,600,676&#160;shares that &lt;em style="font: inherit;"&gt; may &lt;/em&gt;be issued or reserved for awards to participants under the Incentive Plan. As of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, Fuel Tech had 2,603,801&#160;shares available for share-based awards under the &lt;em style="font: inherit;"&gt;2014&lt;/em&gt; Plan.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;We did &lt;span style="-sec-ix-hidden:c78771753"&gt;&lt;span style="-sec-ix-hidden:c78771754"&gt;not&lt;/span&gt;&lt;/span&gt; record any excess tax benefits within income tax expense for the &lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;. Given the Company has a full valuation allowance on its deferred tax assets, there were &lt;em style="font: inherit;"&gt;no&lt;/em&gt; excess tax benefits to record for the &lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;. In addition, we account for forfeitures of awards based on an estimate of the number of awards expected to be forfeited and adjusting the estimate when it is &lt;em style="font: inherit;"&gt;no&lt;/em&gt; longer probable that the employee will fulfill the service condition.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160; &#160;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Stock-based compensation is included in selling, general, and administrative costs in our Condensed Consolidated Statements of Operations. The components of stock-based compensation for the&#160;&lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt; were as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

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&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Stock options and restricted stock units, net of forfeited&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;21&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;57&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;61&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;207&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;After-tax effect of stock-based compensation&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;21&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;57&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;61&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;207&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Stock Options&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Stock options granted to employees under the Incentive Plans have a 10-year life and they vest as follows: 50% after the &lt;em style="font: inherit;"&gt;second&lt;/em&gt; anniversary of the award date, 25% after the &lt;em style="font: inherit;"&gt;third&lt;/em&gt; anniversary, and the final 25% after the &lt;em style="font: inherit;"&gt;fourth&lt;/em&gt; anniversary of the award date. Fuel Tech calculates stock compensation expense for employee option awards based on the grant date fair value of the award, less expected annual forfeitures, and recognizes expense on a straight-line basis over the &lt;em style="font: inherit;"&gt;four&lt;/em&gt;-year service period of the award. Stock options granted to members of our board of directors vest immediately. Stock compensation for these awards is based on the grant date fair value of the award and is recognized in expense immediately.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech uses the Black-Scholes option pricing model to estimate the grant date fair value of employee stock options. The principal variable assumptions utilized in valuing options and the methodology for estimating such model inputs include: (&lt;em style="font: inherit;"&gt;1&lt;/em&gt;)&#160;risk-free interest rate &#x2013; an estimate based on the yield of zero&#x2013;coupon treasury securities with a maturity equal to the expected life of the option; (&lt;em style="font: inherit;"&gt;2&lt;/em&gt;)&#160;expected volatility &#x2013; an estimate based on the historical volatility of Fuel Tech&#x2019;s Common Stock for a period equal to the expected life of the option; and (&lt;em style="font: inherit;"&gt;3&lt;/em&gt;)&#160;expected life of the option &#x2013; an estimate based on historical experience including the effect of employee terminations.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;Stock option activity for Fuel Tech&#x2019;s Incentive Plans for the&#160;&lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; was as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Weighted- Average&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Number&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Weighted-&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Remaining&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Aggregate&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;of&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Average&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Contractual&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Intrinsic&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Options&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Exercise Price&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Term&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Value&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Outstanding on January 1, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;484,500&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3.57&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Granted&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Exercised&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Expired or forfeited&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(50,000&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;8.16&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Outstanding on September 30, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;434,500&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3.05&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3.34&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;73&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Exercisable on September 30, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;434,500&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;3.05&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3.34&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;73&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;As of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, there was no unrecognized compensation cost related to non-vested stock options granted under the Incentive Plans.&lt;br/&gt; &#160;&lt;/p&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;b&gt;Restricted Stock Units&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Restricted stock units (RSUs) granted to employees vest over time based on continued service (typically vesting over a period between &lt;span style="-sec-ix-hidden:c78771778"&gt;two&lt;/span&gt; and &lt;span style="-sec-ix-hidden:c78771779"&gt;four&lt;/span&gt; years). Such time-vested RSUs are valued at the date of grant using the intrinsic value method based on the closing price of the Common Shares on the grant date. Compensation cost, adjusted for estimated forfeitures, is amortized on a straight-line basis over the requisite service period.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;In addition to the time vested RSUs, the Company entered into a &lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&#160;Executive Performance RSU Award Agreement (the &lt;em style="font: inherit;"&gt;&#x201c;2021&lt;/em&gt; Agreement&#x201d;) with certain officers, including its President and Chief Executive Officer pursuant to which each &lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&#160;Participating Executive will have the opportunity to earn a specified amount of restricted stock units (RSUs). The amount of RSUs awarded, if any, will be based on the Company&#x2019;s achievement of varying levels of operating income before the impact of incentive pay (but including adjustments to reflect the payment of sales commissions) in fiscal &lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&#160;(&#x201c;Operating Income&#x201d;), as determined by the Company, in its sole discretion. Nevertheless, &lt;em style="font: inherit;"&gt;no&lt;/em&gt; Participating Executive will be entitled to any such RSUs unless the Company achieves a minimum of $1 million in Operating Income in &lt;em style="font: inherit;"&gt;2021.&lt;/em&gt; If awarded, such RSUs will vest in equal amounts (&lt;i&gt;i.e.,&lt;/i&gt;&#160;&lt;span style="-sec-ix-hidden:c78771787"&gt;1/3,&lt;/span&gt; &lt;span style="-sec-ix-hidden:c78771788"&gt;1/3&lt;/span&gt; and &lt;span style="-sec-ix-hidden:c78771789"&gt;1/3&lt;/span&gt;) over &lt;span style="-sec-ix-hidden:c78771790"&gt;three&lt;/span&gt; years commencing &lt;em style="font: inherit;"&gt;one&lt;/em&gt; year after the grant date based on continued service. Such RSUs are valued at the date of grant based on the closing price of the Company&#x2019;s common stock on the grant date. Currently there is &lt;em style="font: inherit;"&gt;no&lt;/em&gt; expense reflected in the financial statements for these awards as the achievement is &lt;em style="font: inherit;"&gt;not&lt;/em&gt; considered probable.&#160;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;At&#160;&lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;, there is $39&#160;of unrecognized compensation cost related to all non-vested share-based compensation arrangements granted under the Incentive Plan. That cost is expected to be recognized over the remaining requisite service period of 0.47&#160;years.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;A summary of restricted stock unit activity for the&#160;&lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; is as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Weighted Average&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Grant Date&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Shares&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Fair Value&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unvested restricted stock units at January 1, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;100,005&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;4.08&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Granted&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Forfeited&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(5,000&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;0.97&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Vested&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(50,002&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1.50&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unvested restricted stock units at September 30, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;45,003&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7.29&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
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   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The fair value of restricted stock that vested during the&#160;&lt;em style="font: inherit;"&gt;nine&lt;/em&gt; month period ending &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; was $75.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Deferred Directors Fees&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;In addition to the Incentive Plans, Fuel Tech has a Deferred Compensation Plan for Directors (Deferred Plan). Under the terms of the Deferred Plan, Directors can elect to defer Directors&#x2019; fees for shares of Fuel Tech Common Stock that are issuable at a future date as defined in the agreement. In accordance with ASC &lt;em style="font: inherit;"&gt;718,&lt;/em&gt; Fuel Tech accounts for these awards as equity awards as opposed to liability awards. During the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt;&#160;month periods ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt;, Fuel Tech recorded no stock-based compensation expense under the Deferred Plan.&lt;/p&gt;
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    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Stock options and restricted stock units, net of forfeited&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;21&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;57&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;61&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;207&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;After-tax effect of stock-based compensation&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;21&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;57&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;61&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;207&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
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    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;&lt;tbody&gt;&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Weighted- Average&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Number&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Weighted-&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Remaining&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Aggregate&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;of&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Average&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Contractual&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Intrinsic&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Options&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Exercise Price&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Term&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Value&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Outstanding on January 1, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;484,500&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3.57&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Granted&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Exercised&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Expired or forfeited&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(50,000&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;8.16&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Outstanding on September 30, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;434,500&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3.05&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3.34&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;73&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Exercisable on September 30, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;434,500&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;3.05&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3.34&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;73&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Grant Date&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Shares&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Fair Value&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unvested restricted stock units at January 1, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;100,005&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;4.08&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Granted&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;&lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Forfeited&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(5,000&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;0.97&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Vested&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(50,002&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1.50&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;&lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Unvested restricted stock units at September 30, 2021&lt;/p&gt; &lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;45,003&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;&lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7.29&lt;/td&gt;&lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
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   &lt;p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;9.&lt;/em&gt;&#160; &#160; &#160; Warrants&lt;/b&gt;&lt;/p&gt;
   &lt;p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt; text-align: left; text-indent: 0pt;  "&gt;On &lt;em style="font: inherit;"&gt; February 11, 2021, &lt;/em&gt;Fuel Tech entered into a securities purchase agreement&#160;to issue and sell, in a private placement, 5,000,000 shares of Common Stock&#160;and 2,500,000 warrants exercisable for a total of 2,500,000 shares of Common Stock with an exercise price of $5.10 per Warrant Share, at a purchase price of $5.1625 per Share and associated warrant. The gross proceeds to the Company from the Private Placement were&#160;$25,812, before deducting placement agent fees and offering expenses of $1,783. Subject to certain ownership limitations, the Warrants are immediately exercisable upon issuance and expire on the &lt;span style="-sec-ix-hidden:c78771892"&gt;five&lt;/span&gt; and &lt;em style="font: inherit;"&gt;one&lt;/em&gt;-half year anniversary of the effective date of the registration statement registering the Warrant Shares for resale.&#160; In addition, the Company issued to the placement agent Warrants to purchase up to 350,000 shares of Common Stock.&#160; The Placement Agent Warrants are exercisable at an exercise price of $6.45&#160;per share of Common Stock and expire on the &lt;span style="-sec-ix-hidden:c78771896"&gt;five&lt;/span&gt; and &lt;em style="font: inherit;"&gt;one&lt;/em&gt;-half year anniversary of the effective date of the registration statement registering the Shares and the Warrant Shares for resale.&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;"&gt;Fuel Tech uses the Black-Scholes option pricing model to estimate the grant date fair value of the warrants. The principal variable assumptions utilized in valuing warrants and the methodology for estimating such model inputs are: (&lt;em style="font: inherit;"&gt;1&lt;/em&gt;)&#160;risk-free interest rate of 0.59%, an estimate based on the yield of zero&#x2013;coupon treasury securities with a maturity equal to the expected life of the warrant; (&lt;em style="font: inherit;"&gt;2&lt;/em&gt;)&#160;expected volatility of 94.66% &#x2013; an estimate based on the historical volatility of Fuel Tech&#x2019;s Common Stock for a period equal to the expected life of the warrant; and (&lt;em style="font: inherit;"&gt;3&lt;/em&gt;)&#160;expected life of the warrant of &lt;span style="-sec-ix-hidden:c78771903"&gt;five&lt;/span&gt; and &lt;em style="font: inherit;"&gt;one&lt;/em&gt;-half years based on the term of the warrant.&#160;&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;"&gt;The calculated fair value allocated to the warrants is $7,337.&#160; This amount has been recorded as Additional paid in capital - warrants and is shown net in the Additional paid in capital line of the condensed consolidated balance sheets.&#160;&#160;&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;"&gt;The issuance of warrants to purchase shares of the Company's common stock are summarized as follows:&lt;/p&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0px;"&gt;&#160;&lt;/p&gt;

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       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;Granted&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;2,850,000&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;Exercised&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;Outstanding as of September 30, 2021&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;2,850,000&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/p&gt;
   &lt;div style="font-size:10pt"&gt;
    &lt;div style="font-family:'Times New Roman', Times, serif"&gt;
      The following table summarizes information about warrants outstanding and exercisable at
     &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;:
    &lt;/div&gt;
   &lt;/div&gt;
   &lt;p style="font-family: Times New Roman; font-size: 10pt; margin: 0px;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="vertical-align: bottom; font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" style="border-bottom: 1px solid rgb(0, 0, 0); width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;Range of Exercise Price&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;Number Outstanding/Exercisable&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="1" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;Weighted Average Remaining Life in Years&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;Weighted Average Exercise Price&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;$5.10&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;2,500,000&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;4.87&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;5.10&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;$6.45&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;350,000&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;4.87&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;6.45&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" rowspan="1" style="width: 41%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&#160;&lt;/td&gt;
       &lt;td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;2,850,000&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/p&gt;


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    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="vertical-align: bottom; font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;Shares&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; margin-top: 0px; margin-bottom: 0px;"&gt;Outstanding on December 31, 2020&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;Granted&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;2,850,000&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;Exercised&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;Outstanding as of September 30, 2021&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;2,850,000&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

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    &lt;/table&gt;
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     &lt;tbody&gt;
      &lt;tr style="vertical-align: bottom; font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" style="border-bottom: 1px solid rgb(0, 0, 0); width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;Range of Exercise Price&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;Number Outstanding/Exercisable&lt;/td&gt;
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       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="1" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;Weighted Average Remaining Life in Years&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;Weighted Average Exercise Price&lt;/td&gt;
       &lt;td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;$5.10&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;2,500,000&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;4.87&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;5.10&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(255, 255, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;$6.45&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;350,000&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;4.87&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;"&gt;6.45&lt;/td&gt;
       &lt;td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="vertical-align: bottom; background-color: rgb(204, 238, 255); font-family: Times New Roman; font-size: 10pt;"&gt;
       &lt;td colspan="2" rowspan="1" style="width: 41%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&#160;&lt;/td&gt;
       &lt;td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;"&gt;2,850,000&lt;/td&gt;
       &lt;td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;10.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Debt Financing&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;On &lt;em style="font: inherit;"&gt; April 17, 2020, &lt;/em&gt;the Company received $1,556 in loan proceeds from the Paycheck Protection Program (the &#x201c;PPP&#x201d;), established pursuant to the Coronavirus Aid, Relief, and Economic Security Act (the &#x201c;CARES Act&#x201d;) and administered by the U.S. Small Business Administration (&#x201c;SBA&#x201d;). The unsecured loan is evidenced by a promissory note of the Company dated &lt;em style="font: inherit;"&gt; April 15, 2020 (&lt;/em&gt;the &#x201c;Note&#x201d;) in the principal amount of $1,556, issued to BMO Harris Bank N.A. (the &#x201c;Bank&#x201d;), the lender.&#160;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;On &lt;em style="font: inherit;"&gt; January 8, 2021, &lt;/em&gt;the Company received full forgiveness from the SBA for the entire balance of loan proceeds used to&#160;fund its qualified payroll&#160;expenses. The Company accounts for the PPP Loan as debt in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) &lt;em style="font: inherit;"&gt;470,&lt;/em&gt; Debt and accrues interest in accordance with the interest method under FASB ASC &lt;em style="font: inherit;"&gt;835&lt;/em&gt;-&lt;em style="font: inherit;"&gt;30.&lt;/em&gt;&#160; When the loan was forgiven,&#160;the Company reduced the non-current liability by the amount forgiven&#160;and recorded other income&#160;in the Condensed Consolidated Statement of Operations.&#160;&#160;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;11.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Business Segment and Geographic Financial Data&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;b&gt;Business Segment Financial Data&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;We segregate our financial results into two reportable segments representing &lt;em style="font: inherit;"&gt;two&lt;/em&gt; broad technology segments as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;"&gt;
    &lt;tbody&gt;
     &lt;tr style="vertical-align: top;"&gt;
      &lt;td style="width: 36pt;"&gt;&#160;&lt;/td&gt;
      &lt;td style="width: 18pt;"&gt; &lt;p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;"&gt;&#x2022;&lt;/p&gt; &lt;/td&gt;
      &lt;td&gt; &lt;p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;"&gt;The Air Pollution Control technology segment includes technologies to reduce NOx emissions in flue gas from boilers, incinerators, furnaces and other stationary combustion sources. These include Low and Ultra Low NOx Burners (LNB and ULNB), Over-Fire Air (OFA) systems, NOxOUT&lt;sup style="vertical-align:top;line-height:120%;font-size:pt"&gt;&#xae;&lt;/sup&gt; and HERT&#x2122; Selective Non-Catalytic Reduction (SNCR) systems, and Advanced Selective Catalytic Reduction (ASCR&lt;sup style="vertical-align:top;line-height:120%;font-size:pt"&gt;&#x2122;&lt;/sup&gt;) systems. Our ASCR systems include ULNB, OFA, and SNCR components, along with a downsized SCR catalyst, Ammonia Injection Grid (AIG), and Graduated Straightening Grid GSG&#x2122; systems to provide high NOx reductions at significantly lower capital and operating costs than conventional SCR systems. The NOxOUT CASCADE&lt;sup style="vertical-align:top;line-height:120%;font-size:pt"&gt;&#xae;&lt;/sup&gt; and NOxOUT-SCR&lt;sup style="vertical-align:top;line-height:120%;font-size:pt"&gt;&#xae;&lt;/sup&gt; processes are more basic, using just SNCR and SCR catalyst components. ULTRA&#x2122; technology creates ammonia at a plant site using safe urea for use with any SCR application. Flue Gas Conditioning systems are chemical injection systems offered in markets outside the U.S. and Canada to enhance electrostatic precipitator and fabric filter performance in controlling particulate emissions.&lt;/p&gt; &lt;/td&gt;
     &lt;/tr&gt;

    &lt;/tbody&gt;
   &lt;/table&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;table border="0" cellpadding="0" cellspacing="0" style="width: 100%; text-indent: 0px;"&gt;
    &lt;tbody&gt;
     &lt;tr style="vertical-align: top;"&gt;
      &lt;td style="width: 36pt;"&gt;&#160;&lt;/td&gt;
      &lt;td style="width: 18pt;"&gt; &lt;p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;"&gt;&#x2022;&lt;/p&gt; &lt;/td&gt;
      &lt;td&gt; &lt;p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;"&gt;The FUEL CHEM&lt;sup style="vertical-align:top;line-height:120%;font-size:pt"&gt;&#xae;&lt;/sup&gt; technology segment, which uses chemical processes in combination with advanced CFD and CKM boiler modeling, for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in furnaces and boilers through the addition of chemicals into the furnace using TIFI&lt;sup style="vertical-align:top;line-height:120%;font-size:pt"&gt;&#xae;&lt;/sup&gt; Targeted In-Furnace Injection&#x2122; technology.&lt;/p&gt; &lt;/td&gt;
     &lt;/tr&gt;

    &lt;/tbody&gt;
   &lt;/table&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The &#x201c;Other&#x201d; classification includes those profit and loss items &lt;em style="font: inherit;"&gt;not&lt;/em&gt; allocated to either reportable segment. There are &lt;em style="font: inherit;"&gt;no&lt;/em&gt; inter-segment sales that require elimination.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;We evaluate performance and allocate resources based on reviewing gross margin by reportable segment. The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies (Note &lt;em style="font: inherit;"&gt;1&lt;/em&gt; in our annual report on Form &lt;em style="font: inherit;"&gt;10&lt;/em&gt;-K). We do &lt;em style="font: inherit;"&gt;not&lt;/em&gt; review assets by reportable segment, but rather, in aggregate for the Company as a whole.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Information about reporting segment net sales and gross margin from operations are provided below:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Three months ended September 30, 2021&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,944&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,615&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(1,134&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(2,706&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(3,840&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;2,909&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;3,719&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;(2,801&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;(2,801&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(340&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(340&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,909&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(3,141&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;578&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Three months ended September 30, 2020&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,886&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,269&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;304&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,553&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,249&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3,190&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,716&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,906&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(3,184&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(3,184&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(285&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(285&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;3,190&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,716&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(3,469&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,437&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;



    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Nine months ended September 30, 2021&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3,837&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;13,973&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,172&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(6,978&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(9,150&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,665&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,995&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;8,660&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(8,858&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(8,858&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(1,070&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(1,070&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;1,665&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;6,995&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(9,928&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,268&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; width: 16px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; width: 155px;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Nine months ended September 30, 2020&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,019&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;10,315&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,782&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(5,517&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(8,299&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3,237&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;4,798&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;8,035&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;(9,825&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(9,825&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;(880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;3,237&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;4,798&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;(10,705&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;(2,670&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&lt;b&gt;Geographic Segment Financial Data&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Information concerning our operations by geographic area is provided below. Revenues are attributed to countries based on the location of the customer. Assets are those directly associated with operations of the geographic area.&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues:&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;United States&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,049&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,473&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;15,100&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;12,880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Foreign&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,510&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,682&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;2,710&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3,454&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Assets:&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;"&gt;United States&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;46,713&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;24,524&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;"&gt;Foreign&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;4,326&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,564&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;51,039&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;30,088&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;


  </us-gaap:SegmentReportingDisclosureTextBlock>
    <us-gaap:NumberOfReportableSegments
      contextRef="d_2021-01-01_2021-09-30"
      decimals="INF"
      id="c78771928"
      unitRef="Pure">2</us-gaap:NumberOfReportableSegments>
    <us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock
      contextRef="d_2021-01-01_2021-09-30"
      id="c6B24F343-77A8-4978-8CE0-7A4310BCB583">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Three months ended September 30, 2021&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,944&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,615&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(1,134&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(2,706&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(3,840&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;2,909&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;3,719&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;(2,801&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;(2,801&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(340&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;(340&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,909&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(3,141&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;578&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Three months ended September 30, 2020&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,886&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,269&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;304&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,553&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,249&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3,190&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;2,716&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;5,906&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(3,184&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(3,184&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(285&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(285&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;3,190&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,716&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(3,469&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,437&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Nine months ended September 30, 2021&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3,837&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;13,973&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,172&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(6,978&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(9,150&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,665&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,995&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;8,660&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(8,858&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(8,858&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(1,070&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(1,070&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;1,665&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;6,995&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(9,928&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;(1,268&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Air Pollution&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;FUEL CHEM&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; width: 16px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; width: 155px;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"&gt;&lt;em style="font: inherit;"&gt;&#160;&lt;/em&gt;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Nine months ended September 30, 2020&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Control Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Segment&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Other&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Total&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues from external customers&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,019&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;10,315&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cost of sales&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(2,782&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(5,517&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(8,299&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Gross margin&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;3,237&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;4,798&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;8,035&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Selling, general and administrative&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;(9,825&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(9,825&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Research and development&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;(880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;(880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating income (loss) from operations&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;3,237&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;4,798&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 16px; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 155px; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;(10,705&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;)&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);"&gt;(2,670&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AirPollutionControlMember"
      decimals="-3"
      id="c78771945"
      unitRef="USD">1944000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-FUELCHEMMember"
      decimals="-3"
      id="c78771946"
      unitRef="USD">5615000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementBusinessSegmentsAxis-AllOtherSegmentsMember"
      decimals="-3"
      id="c78771947"
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      id="c5F8796D9-C26F-4421-8512-3071536D15A8">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Revenues:&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;United States&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,049&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;6,473&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;15,100&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;12,880&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Foreign&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,510&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,682&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;2,710&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;3,454&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;7,559&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;8,155&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;17,810&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;16,334&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31,&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Assets:&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;"&gt;United States&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;46,713&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;24,524&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;"&gt;Foreign&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;4,326&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5,564&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;51,039&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;30,088&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-US"
      decimals="-3"
      id="c78772078"
      unitRef="USD">6049000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-US"
      decimals="-3"
      id="c78772079"
      unitRef="USD">6473000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-US"
      decimals="-5"
      id="c78772080"
      unitRef="USD">15100000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-US"
      decimals="-4"
      id="c78772081"
      unitRef="USD">12880000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="d_2021-07-01_2021-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-4"
      id="c78772082"
      unitRef="USD">1510000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-3"
      id="c78772083"
      unitRef="USD">1682000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-4"
      id="c78772084"
      unitRef="USD">2710000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-3"
      id="c78772085"
      unitRef="USD">3454000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78772086"
      unitRef="USD">7559000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78772087"
      unitRef="USD">8155000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-4"
      id="c78772088"
      unitRef="USD">17810000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78772089"
      unitRef="USD">16334000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
    <us-gaap:NoncurrentAssets
      contextRef="i_2021-09-30_StatementGeographicalAxis-US"
      decimals="-3"
      id="c78772095"
      unitRef="USD">46713000</us-gaap:NoncurrentAssets>
    <us-gaap:NoncurrentAssets
      contextRef="i_2020-12-31_StatementGeographicalAxis-US"
      decimals="-3"
      id="c78772096"
      unitRef="USD">24524000</us-gaap:NoncurrentAssets>
    <us-gaap:NoncurrentAssets
      contextRef="i_2021-09-30_StatementGeographicalAxis-NonUsMember"
      decimals="-3"
      id="c78772097"
      unitRef="USD">4326000</us-gaap:NoncurrentAssets>
    <us-gaap:NoncurrentAssets
      contextRef="i_2020-12-31_StatementGeographicalAxis-NonUsMember"
      decimals="-3"
      id="c78772098"
      unitRef="USD">5564000</us-gaap:NoncurrentAssets>
    <us-gaap:NoncurrentAssets
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772099"
      unitRef="USD">51039000</us-gaap:NoncurrentAssets>
    <us-gaap:NoncurrentAssets
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78772100"
      unitRef="USD">30088000</us-gaap:NoncurrentAssets>
    <us-gaap:LesseeOperatingLeasesTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981280">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;12.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Leases&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;Leases&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;We have &lt;span style="-sec-ix-hidden:c78772102"&gt;seven&lt;/span&gt; total operating leases which relate to both office space locations and certain office equipment. Our leases have remaining lease terms of 2&#160;months to 4&#160;years. Our leases do &lt;em style="font: inherit;"&gt;not&lt;/em&gt; contain any material residual value guarantees or material restricted covenants and we currently have &lt;em style="font: inherit;"&gt;no&lt;/em&gt; material sublease arrangements. We have no financing leases as defined under ASC &lt;em style="font: inherit;"&gt;842.&lt;/em&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;Total operating lease expense for the &lt;em style="font: inherit;"&gt;three&lt;/em&gt; and &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt;,&#160;is as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating lease cost&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;44&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;47&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;133&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;157&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Short-term lease cost&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;4&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;15&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;12&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Total lease cost&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;48&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;52&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;148&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;169&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The weighted average remaining lease term was 2.45&#160;years as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;. The weighted average discount rate was 4.55%&#160;as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;Remaining maturities of our existing lease liabilities as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; were as follows:&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Year Ending December 31,&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Operating Leases&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2021 (excluding the nine months ended September 30, 2021)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;44&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2022&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;132&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2023&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;115&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2024&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;29&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2025&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;7&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total lease payments&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;327&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Less imputed interest&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(52&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;275&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The following is the balance sheet classification of our existing lease liabilities as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating lease liabilities - current&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;128&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;149&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating lease liabilities - non-current&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;147&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;237&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total operating lease liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;275&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;386&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;Supplemental cash flow information related to leases, was as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cash paid for amounts included in the measurement of lease liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;50&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;45&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;148&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;148&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Leased assets obtained in exchange for operating lease liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;39&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;41&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;119&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;137&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&#160;&lt;/p&gt;


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    <us-gaap:LesseeOperatingLeaseRemainingLeaseTerm
      contextRef="i_2021-09-30_RangeAxis-MinimumMember"
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    <us-gaap:LesseeOperatingLeaseRemainingLeaseTerm
      contextRef="i_2021-09-30_RangeAxis-MaximumMember"
      id="c78772104">P4Y</us-gaap:LesseeOperatingLeaseRemainingLeaseTerm>
    <us-gaap:FinanceLeaseLiability
      contextRef="i_2021-09-30"
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    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating lease cost&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;44&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;47&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;133&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;157&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Short-term lease cost&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;4&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;5&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;15&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;12&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;"&gt;Total lease cost&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;48&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;52&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;148&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;169&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
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    <us-gaap:OperatingLeaseCost
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78772127"
      unitRef="USD">44000</us-gaap:OperatingLeaseCost>
    <us-gaap:OperatingLeaseCost
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78772128"
      unitRef="USD">47000</us-gaap:OperatingLeaseCost>
    <us-gaap:OperatingLeaseCost
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-3"
      id="c78772129"
      unitRef="USD">133000</us-gaap:OperatingLeaseCost>
    <us-gaap:OperatingLeaseCost
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78772130"
      unitRef="USD">157000</us-gaap:OperatingLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78772131"
      unitRef="USD">4000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78772132"
      unitRef="USD">5000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-3"
      id="c78772133"
      unitRef="USD">15000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78772134"
      unitRef="USD">12000</us-gaap:ShortTermLeaseCost>
    <us-gaap:LeaseCost
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78772135"
      unitRef="USD">48000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78772136"
      unitRef="USD">52000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-3"
      id="c78772137"
      unitRef="USD">148000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78772138"
      unitRef="USD">169000</us-gaap:LeaseCost>
    <us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1 contextRef="i_2021-09-30" id="c78772112">P2Y5M12D</us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1>
    <us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
      contextRef="i_2021-09-30"
      decimals="4"
      id="c78772113"
      unitRef="Pure">0.0455</us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent>
    <us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981282">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Year Ending December 31,&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;Operating Leases&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2021 (excluding the nine months ended September 30, 2021)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;44&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2022&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;132&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2023&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;115&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2024&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;29&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;2025&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;7&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total lease payments&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;327&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Less imputed interest&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;(52&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;"&gt;)&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;275&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772140"
      unitRef="USD">44000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772141"
      unitRef="USD">132000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772142"
      unitRef="USD">115000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772143"
      unitRef="USD">29000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772144"
      unitRef="USD">7000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772145"
      unitRef="USD">327000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue>
    <us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772146"
      unitRef="USD">52000</us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount>
    <us-gaap:OperatingLeaseLiability
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772147"
      unitRef="USD">275000</us-gaap:OperatingLeaseLiability>
    <ftek:OperatingLeaseLiabilitiesTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981283">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating lease liabilities - current&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;128&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;149&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Operating lease liabilities - non-current&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;147&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;237&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total operating lease liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;275&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;386&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </ftek:OperatingLeaseLiabilitiesTableTextBlock>
    <us-gaap:OperatingLeaseLiabilityCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772152"
      unitRef="USD">128000</us-gaap:OperatingLeaseLiabilityCurrent>
    <us-gaap:OperatingLeaseLiabilityCurrent
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78772153"
      unitRef="USD">149000</us-gaap:OperatingLeaseLiabilityCurrent>
    <us-gaap:OperatingLeaseLiabilityNoncurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772154"
      unitRef="USD">147000</us-gaap:OperatingLeaseLiabilityNoncurrent>
    <us-gaap:OperatingLeaseLiabilityNoncurrent
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78772155"
      unitRef="USD">237000</us-gaap:OperatingLeaseLiabilityNoncurrent>
    <us-gaap:OperatingLeaseLiability
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772156"
      unitRef="USD">275000</us-gaap:OperatingLeaseLiability>
    <us-gaap:OperatingLeaseLiability
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78772157"
      unitRef="USD">386000</us-gaap:OperatingLeaseLiability>
    <ftek:LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981284">
    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Three Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;Nine Months Ended&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;September 30,&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Cash paid for amounts included in the measurement of lease liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;50&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;45&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;148&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;148&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Leased assets obtained in exchange for operating lease liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;39&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;41&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;119&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;137&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;
   </ftek:LesseeOperatingLeasesSupplementalCashFlowInformationTableTextBlock>
    <us-gaap:OperatingLeasePayments
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-4"
      id="c78772170"
      unitRef="USD">50000</us-gaap:OperatingLeasePayments>
    <us-gaap:OperatingLeasePayments
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78772171"
      unitRef="USD">45000</us-gaap:OperatingLeasePayments>
    <us-gaap:OperatingLeasePayments
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-3"
      id="c78772172"
      unitRef="USD">148000</us-gaap:OperatingLeasePayments>
    <us-gaap:OperatingLeasePayments
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78772173"
      unitRef="USD">148000</us-gaap:OperatingLeasePayments>
    <us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
      contextRef="d_2021-07-01_2021-09-30"
      decimals="-3"
      id="c78772174"
      unitRef="USD">39000</us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>
    <us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
      contextRef="d_2020-07-01_2020-09-30"
      decimals="-3"
      id="c78772175"
      unitRef="USD">41000</us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>
    <us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
      contextRef="d_2021-01-01_2021-09-30"
      decimals="-3"
      id="c78772176"
      unitRef="USD">119000</us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>
    <us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
      contextRef="d_2020-01-01_2020-09-30"
      decimals="-3"
      id="c78772177"
      unitRef="USD">137000</us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability>
    <us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981285">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;13.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Accrued Liabilities&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;The components of other accrued liabilities are as follows:&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;

    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Contract liabilities (Note 3)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,246&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;850&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Accrued remediation contingency (Note 14)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;176&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Other accrued liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,073&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total other accrued liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;1,829&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,099&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

     &lt;/tbody&gt;
    &lt;/table&gt;

   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
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    &lt;table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;"&gt;
     &lt;tbody&gt;
      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;&lt;em style="font: inherit;"&gt;As of&lt;/em&gt;&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;September 30, 2021&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt; &lt;p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"&gt;&lt;em style="font: inherit;"&gt;December 31, 2020&lt;/em&gt;&lt;/p&gt; &lt;/td&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Contract liabilities (Note 3)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;1,246&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;850&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Accrued remediation contingency (Note 14)&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; text-align: right;"&gt;&#x2014;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;176&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Other accrued liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;"&gt;583&lt;/td&gt;
       &lt;td style="width: 1%; font-family: &amp;quot;Times New Roman&amp;quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"&gt;1,073&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
      &lt;/tr&gt;

      &lt;tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"&gt;
       &lt;td style="font-family: Times New Roman; font-size: 10pt;"&gt; &lt;p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"&gt;Total other accrued liabilities&lt;/p&gt; &lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;1,829&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;&#160;&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;$&lt;/td&gt;
       &lt;td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);"&gt;2,099&lt;/td&gt;
       &lt;td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;"&gt;&#160;&lt;/td&gt;
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     &lt;/tbody&gt;
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    <us-gaap:ContractWithCustomerLiabilityCurrent
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      id="c78772183"
      unitRef="USD">1246000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:ContractWithCustomerLiabilityCurrent
      contextRef="i_2020-12-31"
      decimals="-4"
      id="c78772184"
      unitRef="USD">850000</us-gaap:ContractWithCustomerLiabilityCurrent>
    <us-gaap:AccruedEnvironmentalLossContingenciesCurrent
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      unitRef="USD">0</us-gaap:AccruedEnvironmentalLossContingenciesCurrent>
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      contextRef="i_2020-12-31"
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      unitRef="USD">176000</us-gaap:AccruedEnvironmentalLossContingenciesCurrent>
    <ftek:OtherAccruedLiabilitiesMiscellaneousCurrent
      contextRef="i_2021-09-30"
      decimals="-3"
      id="c78772187"
      unitRef="USD">583000</ftek:OtherAccruedLiabilitiesMiscellaneousCurrent>
    <ftek:OtherAccruedLiabilitiesMiscellaneousCurrent
      contextRef="i_2020-12-31"
      decimals="-3"
      id="c78772188"
      unitRef="USD">1073000</ftek:OtherAccruedLiabilitiesMiscellaneousCurrent>
    <us-gaap:OtherAccruedLiabilitiesCurrent
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      id="c78772189"
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    <us-gaap:OtherAccruedLiabilitiesCurrent
      contextRef="i_2020-12-31"
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      id="c78772190"
      unitRef="USD">2099000</us-gaap:OtherAccruedLiabilitiesCurrent>
    <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="d_2021-01-01_2021-09-30" id="c1981287">
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;14.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Commitments and Contingencies&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech is subject to various claims and contingencies related to, among other things, workers compensation, general liability (including product liability), and lawsuits. The Company records liabilities where a contingent loss is probable and can be reasonably estimated. If the reasonable estimate of a probable loss is a range, the Company records the most probable estimate of the loss or the minimum amount when &lt;em style="font: inherit;"&gt;no&lt;/em&gt; amount within the range is a better estimate than any other amount. The Company discloses a contingent liability even if the liability is &lt;em style="font: inherit;"&gt;not&lt;/em&gt; probable or the amount is &lt;em style="font: inherit;"&gt;not&lt;/em&gt; estimable, or both, if there is a reasonable possibility that a material loss &lt;em style="font: inherit;"&gt; may &lt;/em&gt;have been incurred.&lt;/p&gt;
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   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;"&gt;From time to time we are involved in litigation with respect to matters arising from the ordinary conduct of our business. In the opinion of management, based upon presently available information, either adequate provision for anticipated costs have been accrued or the ultimate anticipated costs will &lt;em style="font: inherit;"&gt;not&lt;/em&gt; materially affect our consolidated financial position, results of operations, or cash flows.&#160; We do &lt;em style="font: inherit;"&gt;not&lt;/em&gt; believe we have any pending loss contingencies that are probable or reasonably possible of having a material impact on our consolidated financial position, results of operations or cash flows.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family: &amp;quot;Times New Roman&amp;quot;, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: justify;"&gt;During the &lt;em style="font: inherit;"&gt;third&lt;/em&gt; quarter of &lt;em style="font: inherit;"&gt;2020,&lt;/em&gt; the Company was notified of an equipment component failure at a foreign customer location.&#160; The failure was remedied under the warranty provision of&#160;the contract&#160;that is&#160;in place with the customer and supplier and was completed in the &lt;em style="font: inherit;"&gt;third&lt;/em&gt; quarter of &lt;em style="font: inherit;"&gt;2021.&lt;/em&gt;&#160;As of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt;&#160;and &lt;em style="font: inherit;"&gt; December 31, &lt;/em&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;, respectively, a charge of $0&#160;and $176&#160;was recorded in the other accrued liabilities&#160;line of the condensed consolidated balance sheets.&#160;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech issues a standard product warranty with the sale of its products to customers. Our recognition of warranty liability is based primarily on analyses of warranty claims experienced in the preceding years as the nature of our historical product sales for which we offer a warranty are substantially unchanged. This approach provides an aggregate warranty accrual that is historically aligned with actual warranty claims experienced.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;There was no change in the warranty liability balance included in the other accrued liabilities line of the Condensed Consolidated Balance Sheets during the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; months ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt;. The warranty liability balance was $159 at &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; and &lt;em style="font: inherit;"&gt; December 31, &lt;/em&gt;&lt;em style="font: inherit;"&gt;2020&lt;/em&gt;.&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;15.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Income Taxes&lt;/b&gt;&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;The Company&#x2019;s effective tax rate is approximately 3.2%&#160;and (5.8%) for the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt;-month periods ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt;, respectively.&#160; The Company's effective tax rate differs from the statutory federal tax rate of 21% for the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; month period ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; primarily due to a full valuation allowance recorded on our United States, China and Italy deferred tax assets since we cannot anticipate when or if we will have sufficient taxable income to utilize the deferred tax assets in the future. Further, our effective tax rate differs from the statutory federal tax rate due to state taxes, differences between U.S. and foreign tax rates, foreign losses incurred with &lt;em style="font: inherit;"&gt;no&lt;/em&gt; related tax benefit, non-deductible commissions, and non-deductible meals and entertainment expenses for the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt; month periods ended &lt;em style="font: inherit;"&gt; September 30, 2021 &lt;/em&gt;and &lt;em style="font: inherit;"&gt;2020&lt;/em&gt;.&#160;&#160;Income generated in the &lt;em style="font: inherit;"&gt;nine&lt;/em&gt;&#160;months ended &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; attributed to the gain on forgiveness of the Paycheck Protection Plan loan is&#160;tax exempt.&#160;&lt;/p&gt;
   &lt;p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"&gt;&#160;&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;Fuel Tech had no unrecognized tax benefits as of &lt;em style="font: inherit;"&gt; September 30, 2021&lt;/em&gt; and &lt;em style="font: inherit;"&gt; December 31, 2020&lt;/em&gt;.&lt;/p&gt;
   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"&gt;&#160;&lt;/p&gt;
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   &lt;p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"&gt;&lt;b&gt;&lt;em style="font: inherit;"&gt;16.&lt;/em&gt;&#160;&#160;&#160;&#160;&#160;Goodwill and Other Intangibles&lt;/b&gt;&lt;/p&gt;
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CurrentFiscalYearEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:gMonthDayItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalPeriodFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalPeriodFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fiscalPeriodItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalYearFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalYearFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:gYearItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentInformationLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentInformationLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentQuarterlyReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as an quarterly report.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Form 10-Q<br> -Number 240<br> -Section 308<br> -Subsection a<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentQuarterlyReport</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentTransitionReport">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true only for a form used as a transition report.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Forms 10-K, 10-Q, 20-F<br> -Number 240<br> -Section 13<br> -Subsection a-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentTransitionReport</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fileNumberItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityInteractiveDataCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-T<br> -Number 232<br> -Section 405<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityInteractiveDataCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityShellCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityShellCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a Smaller Reporting Company (SRC).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntitySmallBusiness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:employerIdItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:tradingSymbolItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948200104">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 35,161<span></span>
</td>
<td class="nump">$ 10,640<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue', window );">Restricted cash</a></td>
<td class="nump">891<span></span>
</td>
<td class="nump">1,595<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNetCurrent', window );">Accounts receivable, net</a></td>
<td class="nump">5,062<span></span>
</td>
<td class="nump">6,548<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNet', window );">Inventories, net</a></td>
<td class="nump">128<span></span>
</td>
<td class="nump">97<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent', window );">Prepaid expenses and other current assets</a></td>
<td class="nump">1,064<span></span>
</td>
<td class="nump">2,193<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">42,306<span></span>
</td>
<td class="nump">21,073<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNet', window );">Property and equipment, net of accumulated depreciation of $18,582 and $26,889, respectively</a></td>
<td class="nump">5,293<span></span>
</td>
<td class="nump">5,220<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">2,116<span></span>
</td>
<td class="nump">2,116<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IntangibleAssetsNetExcludingGoodwill', window );">Other intangible assets, net of accumulated amortization of $871 and $757, respectively</a></td>
<td class="nump">475<span></span>
</td>
<td class="nump">553<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent', window );">Restricted cash</a></td>
<td class="nump">270<span></span>
</td>
<td class="nump">371<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right-of-use operating lease assets</a></td>
<td class="nump">283<span></span>
</td>
<td class="nump">394<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsNoncurrent', window );">Other assets</a></td>
<td class="nump">296<span></span>
</td>
<td class="nump">361<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">51,039<span></span>
</td>
<td class="nump">30,088<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">1,354<span></span>
</td>
<td class="nump">2,353<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrentAbstract', window );"><strong>Accrued liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Operating lease liabilities - current</a></td>
<td class="nump">128<span></span>
</td>
<td class="nump">149<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeRelatedLiabilitiesCurrent', window );">Employee compensation</a></td>
<td class="nump">701<span></span>
</td>
<td class="nump">930<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAccruedLiabilitiesCurrent', window );">Other accrued liabilities</a></td>
<td class="nump">1,829<span></span>
</td>
<td class="nump">2,099<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">4,012<span></span>
</td>
<td class="nump">5,531<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Operating lease liabilities - non-current</a></td>
<td class="nump">147<span></span>
</td>
<td class="nump">237<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtNoncurrent', window );">Long-term borrowings</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">1,556<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredIncomeTaxLiabilitiesNet', window );">Deferred income taxes, net</a></td>
<td class="nump">134<span></span>
</td>
<td class="nump">134<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesNoncurrent', window );">Other liabilities</a></td>
<td class="nump">302<span></span>
</td>
<td class="nump">309<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">4,595<span></span>
</td>
<td class="nump">7,767<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract', window );"><strong>Stockholders&#8217; equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, $.01 par value, 40,000,000 shares authorized, 31,227,300 and 25,639,702 shares issued, and 30,263,791 and 25,228,951 shares outstanding, respectively</a></td>
<td class="nump">312<span></span>
</td>
<td class="nump">262<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="nump">164,178<span></span>
</td>
<td class="nump">140,138<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(114,305)<span></span>
</td>
<td class="num">(114,603)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax', window );">Accumulated other comprehensive loss</a></td>
<td class="num">(1,583)<span></span>
</td>
<td class="num">(1,370)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConvertibleDebt', window );">Nil coupon perpetual loan notes</a></td>
<td class="nump">76<span></span>
</td>
<td class="nump">76<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValue', window );">Treasury stock, at cost</a></td>
<td class="num">(2,234)<span></span>
</td>
<td class="num">(2,182)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total stockholders&#8217; equity</a></td>
<td class="nump">46,444<span></span>
</td>
<td class="nump">22,321<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and stockholders&#8217; equity</a></td>
<td class="nump">$ 51,039<span></span>
</td>
<td class="nump">$ 30,088<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4428-111522<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4531-111522<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsReceivableNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e637-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14A<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669686-108580<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e681-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapitalCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapitalCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI 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-Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 17: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (bb)<br> -URI http://asc.fasb.org/extlink&amp;oid=123419778&amp;loc=d3e5710-111685<br><br>Reference 18: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 19: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (a)<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6801-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124433192&amp;loc=SL2890621-112765<br><br>Reference 4: 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-Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 15: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConvertibleDebt</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredIncomeTaxLiabilitiesNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31931-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=d3e31917-109318<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxLiabilitiesNet</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeRelatedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeRelatedLiabilitiesCurrent</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(10)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120320667&amp;loc=SL49117168-202975<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=99380562&amp;loc=d3e13770-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Goodwill</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IntangibleAssetsNetExcludingGoodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph ((a)(1),(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6388964&amp;loc=d3e16212-109274<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IntangibleAssetsNetExcludingGoodwill</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
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<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124433192&amp;loc=SL2890621-112765<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI 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-Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 20: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's right to use underlying asset under operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6911-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e7018-107765<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6935-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncurrent assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(7))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PrepaidExpenseAndOtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 360<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124429447&amp;loc=SL124453093-239630<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6812-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 954<br> -SubTopic 210<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120413173&amp;loc=SL116631458-115580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 65<br> -Paragraph 15<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=121322162&amp;loc=SL121327923-165333<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (g)(2)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=122038336&amp;loc=d3e74512-122707<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6405834&amp;loc=d3e23315-112656<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29,30)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948230552">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment', window );">Accumulated depreciation</a></td>
<td class="nump">$ 18,582<span></span>
</td>
<td class="nump">$ 26,889<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization', window );">Accumulated amortization, intangible assets</a></td>
<td class="nump">$ 871<span></span>
</td>
<td class="nump">$ 757<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorized', window );">Common stock, shares authorized (in shares)</a></td>
<td class="nump">40,000,000<span></span>
</td>
<td class="nump">40,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued (in shares)</a></td>
<td class="nump">31,227,300<span></span>
</td>
<td class="nump">25,639,702<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding (in shares)</a></td>
<td class="nump">30,263,791<span></span>
</td>
<td class="nump">25,228,951<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.14)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of common shares permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762872650168">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Operations (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpensesAbstract', window );"><strong>Costs and expenses:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of sales</a></td>
<td class="nump">3,840<span></span>
</td>
<td class="nump">2,249<span></span>
</td>
<td class="nump">9,150<span></span>
</td>
<td class="nump">8,299<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative</a></td>
<td class="nump">2,801<span></span>
</td>
<td class="nump">3,184<span></span>
</td>
<td class="nump">8,858<span></span>
</td>
<td class="nump">9,825<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">340<span></span>
</td>
<td class="nump">285<span></span>
</td>
<td class="nump">1,070<span></span>
</td>
<td class="nump">880<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Costs and Expenses, Total</a></td>
<td class="nump">6,981<span></span>
</td>
<td class="nump">5,718<span></span>
</td>
<td class="nump">19,078<span></span>
</td>
<td class="nump">19,004<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income (loss) from operations</a></td>
<td class="nump">578<span></span>
</td>
<td class="nump">2,437<span></span>
</td>
<td class="num">(1,268)<span></span>
</td>
<td class="num">(2,670)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="num">(5)<span></span>
</td>
<td class="num">(9)<span></span>
</td>
<td class="num">(14)<span></span>
</td>
<td class="num">(15)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InvestmentIncomeInterest', window );">Interest income</a></td>
<td class="nump">1<span></span>
</td>
<td class="nump">3<span></span>
</td>
<td class="nump">4<span></span>
</td>
<td class="nump">16<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingIncomeExpense', window );">Other income (expense),net</a></td>
<td class="nump">104<span></span>
</td>
<td class="num">(55)<span></span>
</td>
<td class="nump">1,586<span></span>
</td>
<td class="nump">83<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income (loss) before income taxes</a></td>
<td class="nump">678<span></span>
</td>
<td class="nump">2,376<span></span>
</td>
<td class="nump">308<span></span>
</td>
<td class="num">(2,586)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax expense</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(10)<span></span>
</td>
<td class="num">(149)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">$ 678<span></span>
</td>
<td class="nump">$ 2,376<span></span>
</td>
<td class="nump">$ 298<span></span>
</td>
<td class="num">$ (2,735)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Net income (loss) per common share:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic net income (loss) per common share (in dollars per share)</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (0.11)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted net income (loss) per common share (in dollars per share)</a></td>
<td class="nump">$ 0.02<span></span>
</td>
<td class="nump">$ 0.09<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (0.11)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDilutedOtherDisclosuresAbstract', window );"><strong>Weighted-average number of common shares outstanding:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic (in shares)</a></td>
<td class="nump">30,264,000<span></span>
</td>
<td class="nump">24,701,000<span></span>
</td>
<td class="nump">29,356,000<span></span>
</td>
<td class="nump">24,656,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted (in shares)</a></td>
<td class="nump">30,335,000<span></span>
</td>
<td class="nump">25,120,000<span></span>
</td>
<td class="nump">29,482,000<span></span>
</td>
<td class="nump">24,656,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostOfRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate cost of goods produced and sold and services rendered during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsAndExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs of sales and operating expenses for the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsAndExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsAndExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareAbstract</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasic</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 940<br> -SubTopic 20<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123384075&amp;loc=d3e41242-110953<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(10))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 235<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-05(b)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399901&amp;loc=d3e537907-122884<br><br>Reference 9: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(15))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32672-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123586238&amp;loc=d3e38679-109324<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(9))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (210.5-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InvestmentIncomeInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InvestmentIncomeInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (expense) related to nonoperating activities, classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ResearchAndDevelopmentExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 730<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6472174&amp;loc=d3e58812-109433<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 985<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6501960&amp;loc=d3e128462-111756<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 730<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6420194&amp;loc=d3e21568-108373<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ResearchAndDevelopmentExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SellingGeneralAndAdministrativeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SellingGeneralAndAdministrativeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762980955144">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">$ 678<span></span>
</td>
<td class="nump">$ 2,376<span></span>
</td>
<td class="nump">$ 298<span></span>
</td>
<td class="num">$ (2,735)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract', window );"><strong>Other comprehensive income (loss):</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="num">(153)<span></span>
</td>
<td class="nump">268<span></span>
</td>
<td class="num">(213)<span></span>
</td>
<td class="nump">189<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Comprehensive income (loss)</a></td>
<td class="nump">$ 525<span></span>
</td>
<td class="nump">$ 2,644<span></span>
</td>
<td class="nump">$ 85<span></span>
</td>
<td class="num">$ (2,546)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=d3e557-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(26))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669625-108580<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax</td>
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<tr>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td>na</td>
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<td>duration</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762863218792">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Statements of Stockholders' Equity (Unaudited) - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th"><div>Common Stock Outstanding [Member]</div></th>
<th class="th"><div>Additional Paid-in Capital [Member]</div></th>
<th class="th"><div>Retained Earnings [Member]</div></th>
<th class="th"><div>AOCI Attributable to Parent [Member]</div></th>
<th class="th"><div>Nil Coupon Perpetual Loan Notes [Member]</div></th>
<th class="th"><div>Treasury Stock [Member]</div></th>
<th class="th"><div>Total</div></th>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">$ 254<span></span>
</td>
<td class="nump">$ 139,560<span></span>
</td>
<td class="num">$ (110,325)<span></span>
</td>
<td class="num">$ (1,778)<span></span>
</td>
<td class="nump">$ 76<span></span>
</td>
<td class="num">$ (1,612)<span></span>
</td>
<td class="nump">$ 26,175<span></span>
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<tr class="re">
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<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,567)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,567)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(231)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(231)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock compensation expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">81<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">81<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross', window );">Common shares issued upon vesting of restricted stock units (in shares)</a></td>
<td class="nump">55<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross', window );">Common shares issued upon vesting of restricted stock units</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockSharesAcquired', window );">Treasury shares withheld (in shares)</a></td>
<td class="num">(11)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValueAcquiredCostMethod', window );">Treasury shares withheld</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(5)<span></span>
</td>
<td class="num">(5)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,567)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,567)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(231)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(231)<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2020</a></td>
<td class="nump">24,636<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Mar. 31, 2020</a></td>
<td class="nump">$ 254<span></span>
</td>
<td class="nump">139,641<span></span>
</td>
<td class="num">(112,892)<span></span>
</td>
<td class="num">(2,009)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(1,617)<span></span>
</td>
<td class="nump">23,453<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2019</a></td>
<td class="nump">24,592<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Dec. 31, 2019</a></td>
<td class="nump">$ 254<span></span>
</td>
<td class="nump">139,560<span></span>
</td>
<td class="num">(110,325)<span></span>
</td>
<td class="num">(1,778)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(1,612)<span></span>
</td>
<td class="nump">26,175<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(2,735)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">189<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(2,735)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">189<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Sep. 30, 2020</a></td>
<td class="nump">24,701<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Sep. 30, 2020</a></td>
<td class="nump">$ 255<span></span>
</td>
<td class="nump">139,767<span></span>
</td>
<td class="num">(113,060)<span></span>
</td>
<td class="num">(1,589)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(1,618)<span></span>
</td>
<td class="nump">23,831<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Beginning balance (in shares) at Mar. 31, 2020</a></td>
<td class="nump">24,636<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Mar. 31, 2020</a></td>
<td class="nump">$ 254<span></span>
</td>
<td class="nump">139,641<span></span>
</td>
<td class="num">(112,892)<span></span>
</td>
<td class="num">(2,009)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(1,617)<span></span>
</td>
<td class="nump">23,453<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,544)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,544)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">152<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">152<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock compensation expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">69<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">69<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross', window );">Common shares issued upon vesting of restricted stock units (in shares)</a></td>
<td class="nump">66<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross', window );">Common shares issued upon vesting of restricted stock units</a></td>
<td class="nump">$ 1<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(1)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockSharesAcquired', window );">Treasury shares withheld (in shares)</a></td>
<td class="num">(1)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValueAcquiredCostMethod', window );">Treasury shares withheld</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,544)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,544)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">152<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">152<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Jun. 30, 2020</a></td>
<td class="nump">24,701<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Jun. 30, 2020</a></td>
<td class="nump">$ 255<span></span>
</td>
<td class="nump">139,710<span></span>
</td>
<td class="num">(115,436)<span></span>
</td>
<td class="num">(1,857)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(1,618)<span></span>
</td>
<td class="nump">21,130<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">2,376<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">2,376<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">268<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">268<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock compensation expense</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">57<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">57<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">2,376<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">2,376<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">268<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">268<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Sep. 30, 2020</a></td>
<td class="nump">24,701<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Sep. 30, 2020</a></td>
<td class="nump">$ 255<span></span>
</td>
<td class="nump">139,767<span></span>
</td>
<td class="num">(113,060)<span></span>
</td>
<td class="num">(1,589)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(1,618)<span></span>
</td>
<td class="nump">23,831<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2020</a></td>
<td class="nump">25,229<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Dec. 31, 2020</a></td>
<td class="nump">$ 262<span></span>
</td>
<td class="nump">140,138<span></span>
</td>
<td class="num">(114,603)<span></span>
</td>
<td class="num">(1,370)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(2,182)<span></span>
</td>
<td class="nump">22,321<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">398<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">398<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(193)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(193)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock compensation expense</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">20<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">20<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross', window );">Common shares issued upon vesting of restricted stock units (in shares)</a></td>
<td class="nump">50<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross', window );">Common shares issued upon vesting of restricted stock units</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockSharesAcquired', window );">Treasury shares withheld (in shares)</a></td>
<td class="num">(15)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValueAcquiredCostMethod', window );">Treasury shares withheld</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(52)<span></span>
</td>
<td class="num">(52)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">398<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">398<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(193)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(193)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Common stock issued in connection with private placement, net (in shares)</a></td>
<td class="nump">5,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Common stock issued in connection with private placement, net</a></td>
<td class="nump">$ 50<span></span>
</td>
<td class="nump">23,979<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">24,029<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Mar. 31, 2021</a></td>
<td class="nump">30,264<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Mar. 31, 2021</a></td>
<td class="nump">$ 312<span></span>
</td>
<td class="nump">164,137<span></span>
</td>
<td class="num">(114,205)<span></span>
</td>
<td class="num">(1,563)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(2,234)<span></span>
</td>
<td class="nump">46,523<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Beginning balance (in shares) at Dec. 31, 2020</a></td>
<td class="nump">25,229<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Dec. 31, 2020</a></td>
<td class="nump">$ 262<span></span>
</td>
<td class="nump">140,138<span></span>
</td>
<td class="num">(114,603)<span></span>
</td>
<td class="num">(1,370)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(2,182)<span></span>
</td>
<td class="nump">22,321<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">298<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(213)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">298<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(213)<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Sep. 30, 2021</a></td>
<td class="nump">30,264<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Sep. 30, 2021</a></td>
<td class="nump">$ 312<span></span>
</td>
<td class="nump">164,178<span></span>
</td>
<td class="num">(114,305)<span></span>
</td>
<td class="num">(1,583)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(2,234)<span></span>
</td>
<td class="nump">46,444<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Beginning balance (in shares) at Mar. 31, 2021</a></td>
<td class="nump">30,264<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance at Mar. 31, 2021</a></td>
<td class="nump">$ 312<span></span>
</td>
<td class="nump">164,137<span></span>
</td>
<td class="num">(114,205)<span></span>
</td>
<td class="num">(1,563)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(2,234)<span></span>
</td>
<td class="nump">46,523<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(778)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(778)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">133<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">133<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock compensation expense</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">20<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">20<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(778)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(778)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">133<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">133<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Jun. 30, 2021</a></td>
<td class="nump">30,264<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Jun. 30, 2021</a></td>
<td class="nump">$ 312<span></span>
</td>
<td class="nump">164,157<span></span>
</td>
<td class="num">(114,983)<span></span>
</td>
<td class="num">(1,430)<span></span>
</td>
<td class="nump">76<span></span>
</td>
<td class="num">(2,234)<span></span>
</td>
<td class="nump">45,898<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">678<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">678<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(153)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(153)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock compensation expense</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">21<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">21<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">678<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">678<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation adjustments</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(153)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(153)<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Ending balance (in shares) at Sep. 30, 2021</a></td>
<td class="nump">30,264<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance at Sep. 30, 2021</a></td>
<td class="nump">$ 312<span></span>
</td>
<td class="nump">$ 164,178<span></span>
</td>
<td class="num">$ (114,305)<span></span>
</td>
<td class="num">$ (1,583)<span></span>
</td>
<td class="nump">$ 76<span></span>
</td>
<td class="num">$ (2,234)<span></span>
</td>
<td class="nump">$ 46,444<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=122142933&amp;loc=d3e11149-113907<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=122142933&amp;loc=d3e11178-113907<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123468992&amp;loc=d3e4534-113899<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
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</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares issued which are neither cancelled nor held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesOutstanding</td>
</tr>
<tr>
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<tr>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate value of stock related to Restricted Stock Awards issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=122038336&amp;loc=d3e74512-122707<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockSharesAcquired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares that have been repurchased during the period and are being held in treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockSharesAcquired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValueAcquiredCostMethod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValueAcquiredCostMethod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762872616072">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Operating Activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income (loss)</a></td>
<td class="nump">$ 298<span></span>
</td>
<td class="num">$ (2,735)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Depreciation', window );">Depreciation</a></td>
<td class="nump">457<span></span>
</td>
<td class="nump">495<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentForAmortization', window );">Amortization</a></td>
<td class="nump">114<span></span>
</td>
<td class="nump">139<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnSaleOfPropertyPlantEquipment', window );">Loss (gain) on sale of equipment</a></td>
<td class="nump">13<span></span>
</td>
<td class="num">(3)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProvisionForDoubtfulAccounts', window );">Provision for doubtful accounts, net of recoveries</a></td>
<td class="num">(2)<span></span>
</td>
<td class="num">(1,144)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensation', window );">Stock-based compensation, net of forfeitures</a></td>
<td class="nump">61<span></span>
</td>
<td class="nump">208<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in operating assets and liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsReceivable', window );">Accounts receivable</a></td>
<td class="nump">1,405<span></span>
</td>
<td class="num">(863)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInventories', window );">Inventories</a></td>
<td class="num">(32)<span></span>
</td>
<td class="num">(71)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets', window );">Prepaid expenses, other current assets and other non-current assets</a></td>
<td class="nump">1,176<span></span>
</td>
<td class="nump">239<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayable', window );">Accounts payable</a></td>
<td class="num">(980)<span></span>
</td>
<td class="nump">820<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccruedLiabilities', window );">Accrued liabilities and other non-current liabilities</a></td>
<td class="num">(382)<span></span>
</td>
<td class="num">(376)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Net cash provided by (used in) operating activities</a></td>
<td class="nump">572<span></span>
</td>
<td class="num">(3,291)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>Investing Activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireProductiveAssets', window );">Purchases of equipment and patents</a></td>
<td class="num">(584)<span></span>
</td>
<td class="num">(206)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Net cash used in investing activities</a></td>
<td class="num">(584)<span></span>
</td>
<td class="num">(206)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Financing Activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement', window );">Proceeds from sale of common stock issued in connection with private placement</a></td>
<td class="nump">25,812<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Costs related to sale of common stock issued in connection with private placement</a></td>
<td class="num">(1,783)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRepurchaseOfEquity', window );">Taxes paid on behalf of equity award participants</a></td>
<td class="num">(52)<span></span>
</td>
<td class="num">(6)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Net cash provided by financing activities</a></td>
<td class="nump">23,977<span></span>
</td>
<td class="nump">1,550<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Effect of exchange rate fluctuations on cash</a></td>
<td class="num">(249)<span></span>
</td>
<td class="nump">256<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">Net increase (decrease) in cash, cash equivalents and restricted cash</a></td>
<td class="nump">23,716<span></span>
</td>
<td class="num">(1,691)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations', window );">Cash, cash equivalents, and restricted cash at beginning of period (Note 2)</a></td>
<td class="nump">12,606<span></span>
</td>
<td class="nump">13,501<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations', window );">Cash, cash equivalents and restricted cash at end of period (Note 2)</a></td>
<td class="nump">36,322<span></span>
</td>
<td class="nump">11,810<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=ftek_PaycheckProtectionProgramCaresActMember', window );">Paycheck Protection Program CARES Act [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Gain of forgiveness on Paycheck Protection Plan Loan</a></td>
<td class="num">(1,556)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Financing Activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfLongTermDebt', window );">Proceeds from borrowings</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 1,556<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentForAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentForAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123444420&amp;loc=d3e33268-110906<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Depreciation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Depreciation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123444420&amp;loc=d3e33268-110906<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainLossOnSaleOfPropertyPlantEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnSaleOfPropertyPlantEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12355-112629<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467658&amp;loc=d3e12317-112629<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInInventories">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInventories</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in prepaid expenses, and assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3536-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRepurchaseOfEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow to reacquire common and preferred stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForRepurchaseOfEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfStockIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for cost incurred directly with the issuance of an equity security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfStockIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireProductiveAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3213-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 50<br> -Section 30<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123362884&amp;loc=d3e9212-128498<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 50<br> -Section 30<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123362884&amp;loc=d3e9215-128498<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 50<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123385561&amp;loc=d3e9135-128495<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquireProductiveAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866654216">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 1 - General<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">1.</em>&#160;&#160;&#160;&#160;&#160;General</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Organization</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech, Inc. and subsidiaries ("Fuel Tech", the "Company", "we", "us" or "our") develops and provides&#160;proprietary technologies for air pollution control, process optimization, water treatment, and advanced engineering services. These technologies enable customers to operate in a cost-effective and environmentally sustainable manner.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The Company&#8217;s NOx reduction technologies reduce nitrogen oxide emissions from boilers, furnaces and other stationary combustion sources.&#160; To reduce NOx emissions, our technologies utilize advanced combustion modification techniques and post-combustion NOx control approaches including non-catalytic, catalytic and combined systems.&#160; The Company also&#160;provides solutions for the mitigation of particulate matter, including particulate control with electrostatic precipitator products and services, and using flue gas conditioning systems which modify the ash properties of particulate for improved collection efficiency. The Company&#8217;s FUEL CHEM&#174;&#160;technology improves the efficiency, reliability, fuel flexibility, boiler heat rate, and environmental status of combustion units by controlling slagging, fouling, corrosion, and opacity. Water treatment technologies include DGI&#8482; Dissolved Gas Infusion Systems which utilize a patented nozzle to deliver supersaturated oxygen solutions and other gas-water combinations to target process applications or environmental issues. This infusion process has a variety of applications in the water and wastewater industries, including remediation, aeration, biological treatment, and wastewater odor management.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Many of Fuel Tech&#8217;s products and services rely heavily on the Company&#8217;s&#160;Computational Fluid Dynamics modeling capabilities, which are enhanced by internally developed, high-end visualization software.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><b>Basis of Presentation</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and with the instructions to Form <em style="font: inherit;">10</em>-Q and Article <em style="font: inherit;">10</em> of Regulation S-<em style="font: inherit;">X</em> of the Exchange Act. Accordingly, they do <em style="font: inherit;">not</em> include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the statements for the periods presented. All significant intercompany transactions and balances have been eliminated. The results of operations for the&#160;<em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em> are <em style="font: inherit;">not</em> necessarily indicative of the results to be expected for the full year ending <em style="font: inherit;"> December&#160;</em><em style="font: inherit;">31,</em> <em style="font: inherit;">2021.</em> For further information, refer to the audited consolidated financial statements and footnotes thereto included in Fuel Tech&#8217;s Annual Report on Form <em style="font: inherit;">10</em>-K for the year ended&#160;<em style="font: inherit;"> December 31, 2020</em> as filed with the Securities and Exchange Commission.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>COVID-<em style="font: inherit;">19</em> Pandemic</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The effects&#160;of the coronavirus (COVID-<em style="font: inherit;">19</em>) global pandemic has presented&#160;significant risks to the Company, <em style="font: inherit;">not</em> all of which the Company is able to fully evaluate or even foresee at the current time. Although the impact of the pandemic is difficult to quantify, the Company has experienced, and <em style="font: inherit;"> may </em>continue to experience, reductions in demand for certain of our products&#160;due to the delay or abandonment of ongoing or anticipated projects due to our customers&#8217;, suppliers&#8217; and other <em style="font: inherit;">third</em> parties&#8217; financial distress or concern regarding the volatility of global markets.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Management cannot predict the full impact of the COVID-<em style="font: inherit;">19</em> pandemic on the Company&#8217;s sales and marketing channels and supply chain, and as a result, the ultimate extent of the effects of the COVID-<em style="font: inherit;">19</em> pandemic on the Company is highly uncertain and will depend on future developments. Such effects could exist for an extended period of time even after the pandemic might end.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Private Placement Offering</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">On <em style="font: inherit;"> February 11, 2021, </em>Fuel Tech entered into a securities purchase agreement&#160;to issue and sell, in a private placement, 5,000,000 shares of Common Stock&#160;and 2,500,000 warrants exercisable for a total of 2,500,000 shares of Common Stock with an exercise price of $5.10 per Warrant Share, at a purchase price of $5.1625 per Share and associated warrant. The gross proceeds to the Company from the Private Placement were&#160;$25,812, before deducting placement agent fees and offering expenses of $1,783. Subject to certain ownership limitations, the Warrants are immediately exercisable upon issuance and expire on the <span style="-sec-ix-hidden:c78771449">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Warrant Shares for resale.&#160; In addition, the Company issued to the placement agent Warrants to purchase up to 350,000 shares of Common Stock.&#160; The Placement Agent Warrants are exercisable at an exercise price of $6.45&#160;per share of Common Stock and expire on the <span style="-sec-ix-hidden:c78771453">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Shares and the Warrant Shares for resale.</p>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865114680">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 2 - Summary of Significant Accounting Policies<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The Company applies the provisions of Accounting Standards Codification ("ASC") <em style="font: inherit;">842,</em>&#160;Leases.&#160; The Company determines if an arrangement is a lease at inception by evaluating whether the arrangement conveys the right to use an identified asset and whether the Company obtains substantially all of the economic benefits from and has the ability to direct the use of the asset. Right-of-use ("ROU") assets and lease liabilities are recognized at the lease commencement date based on the present value of the future minimum lease payments over the lease term. Operating ROU assets also include the impact of any lease incentives. Operating leases are included in right-of-use operating lease assets, operating lease liabilities - current, and operating lease liabilities - non-current on our Condensed Consolidated Balance Sheets.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865181928">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Revenue<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">3.</em>&#160;&#160;&#160;&#160;&#160;Revenue</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The Company recognizes revenue when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Fuel Tech&#8217;s sales of products to customers generally represent single performance obligations. The majority of our contracts have a single performance obligation as the promise to transfer the individual goods or services is <em style="font: inherit;">not</em> separately identifiable from other promises in the contracts and, therefore, <em style="font: inherit;">not</em> distinct. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Sales, value add, and other taxes we collect concurrent with revenue-producing activities are excluded from revenue.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>


   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We generally expense sales commissions on a ratable basis when incurred because the amortization period would have been <em style="font: inherit;">one</em> year or less. These costs are recorded within selling, general and administrative expenses within the Condensed Consolidated Statements of Operations.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>&#160;</i></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Air Pollution Control Technology</i></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech&#8217;s Air Pollution Control (&#8220;APC&#8221;) contracts are typically <span style="-sec-ix-hidden:c78771491">six</span> to <span style="-sec-ix-hidden:c78771492">eighteen</span> months in length. A typical contract will have <em style="font: inherit;">three</em> or <em style="font: inherit;">four</em> critical operational measurements that, when achieved, serve as the basis for us to invoice the customer via progress billings. At a minimum, these measurements will include the generation of engineering drawings, the shipment of equipment and the completion of a system performance test.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">As part of most of its contractual APC project agreements, Fuel Tech will agree to customer-specific acceptance criteria that relate to the operational performance of the system that is being sold. These criteria are determined based on modeling that is performed by Fuel Tech personnel, which is based on operational inputs that are provided by the customer. The customer will warrant that these operational inputs are accurate as they are specified in the binding contractual agreement. Further, the customer is solely responsible for the accuracy of the operating condition information; typically all performance guarantees and equipment warranties granted by us are voidable if the operating condition information is inaccurate or is <em style="font: inherit;">not</em> met.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Since control transfers over time, revenue is recognized based on the extent of progress towards completion of the single performance obligation. Fuel Tech uses the cost-to-cost input measure of progress for our contracts since it best depicts the transfer of assets to the customer which occurs as we incur costs on our contracts. Under the cost-to-cost input measure of progress, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. Revenues are recorded proportionally as costs are incurred. Costs to fulfill include all internal and external engineering costs, equipment charges, inbound and outbound freight expenses, internal and site transfer costs, installation charges, purchasing and receiving costs, inspection costs, warehousing costs, project personnel travel expenses and other direct and indirect expenses specifically identified as project- or product-line related, as appropriate (e.g. test equipment depreciation and certain insurance expenses).</p>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Fuel Tech&#8217;s APC product line also includes ancillary revenue for post contractual goods and services.&#160; Revenue associated with these activities are recognized at point in time when delivery of goods or completion of the service obligation is performed.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech has installed over 1,200 units with APC technology and normally provides performance guarantees to our customers based on the operating conditions for the project. As part of the project implementation process, we perform system start-up and optimization services that effectively serve as a test of actual project performance. We believe that this test, combined with the accuracy of the modeling that is performed, enables revenue to be recognized prior to the receipt of formal customer acceptance.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>FUEL CHEM</i></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Revenues from the sale of chemical products are recognized when control transfers to customer upon shipment or delivery of the product based on the applicable shipping terms. We generally recognize revenue for these arrangements at a point in time based on our evaluation of when the customer obtains control of the promised goods or services.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">For projects containing multiple performance obligations, the Company allocates the transaction price based on the estimated standalone selling price. The Company must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. The Company utilizes key assumptions to determine the stand-alone selling price, which <em style="font: inherit;"> may </em>include other comparable transactions, pricing considered in negotiating the transaction and the estimated costs. Variable consideration is allocated specifically to <em style="font: inherit;">one</em> or more performance obligations in a contract when the terms of the variable consideration relate to the satisfaction of the performance obligation and the resulting amounts allocated are consistent with the amounts the Company would expect to receive for the satisfaction of each performance obligation.</p>
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   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">The consideration allocated to each performance obligation is recognized as revenue when control is transferred for the related goods or services. For performance obligations which consist of licenses and other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.</p>
   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">&#160;</p>
   <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;">The Company receives payments from its customers based on billing schedules established in each contract. Up-front payments and fees are recorded as deferred revenue upon receipt or when due until the Company performs its obligations under these arrangements. Amounts are recorded as accounts receivable when the Company&#8217;s right to consideration is unconditional.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>


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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table presents our revenues disaggregated by product technology:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Air Pollution Control</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Technology solutions</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,172</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,326</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,768</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">4,524</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Spare parts</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">407</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">254</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">823</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">667</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Ancillary revenue</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">365</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">306</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">1,246</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">828</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Air Pollution Control Technology revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,944</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,886</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">3,837</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,019</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>FUEL CHEM</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">FUEL CHEM technology solutions</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,615</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,269</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">13,973</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">10,315</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Disaggregated Revenue by Geography</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table presents our revenues disaggregated by geography, based on the billing addresses of our customers:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">United States</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,049</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,473</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">15,100</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">12,880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Foreign Revenues</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Latin America</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">121</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">195</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">338</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">400</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Europe</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">663</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">904</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">1,339</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,494</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Asia</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">726</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">583</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">1,033</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,560</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Foreign Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,510</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,682</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">2,710</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">3,454</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Timing of Revenue Recognition</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table presents the timing of our revenue recognition:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Products transferred at a point in time</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,387</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,108</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">16,042</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">11,089</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,172</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">3,047</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">1,768</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,245</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>


   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Contract Balances</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the consolidated balance sheets. In our Air Pollution Control Technology segment, amounts are billed as work progresses in accordance with agreed-upon contractual terms. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. For the FUEL CHEM technology segment, deliveries made in the current period but billed in subsequent periods are also considered unbilled receivables (contract assets).&#160; These assets are reported on the&#160;consolidated balance sheet on a contract-by-contract basis at the end of each reporting period. &#160;At <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, 2020</em>, contract assets for APC technology projects were approximately $375&#160;and $2,080, respectively, and $0&#160;and $269, respectively, for the FUEL CHEM technology segment, and are included in accounts receivable on the condensed consolidated balance sheets.&#160;&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>Remaining Performance Obligations</i></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><i>&#160;</i></p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,423</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,015</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">375</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,348</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other short-term receivables</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">102</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">20</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Allowance for doubtful accounts</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(838</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(835</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762960416520">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 4 - Restructuring Activities<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">4.</em>&#160;&#160;&#160;&#160;&#160;Restructuring Activities</b></p>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">On <em style="font: inherit;"> January 18, 2019, </em>the Company announced a planned suspension of its Air Pollution Control (&#8220;APC&#8221;) business operation in China. This action was part of Fuel Tech&#8217;s ongoing operational improvement initiatives designed to prioritize resource allocation, reduce costs, and drive profitability for the Company on a global basis. The transition associated with the suspension of the APC business which has taken place through <em style="font: inherit;"> September 30, 2021</em> includes staff rationalization and reduction, supplier and partner engagement, and the monetization of certain assets. The remaining transition activities include the execution of the activities to satisfy the requirements for the remaining APC projects in China (with a backlog totaling approximately $10) in addition to collection efforts for the remaining accounts receivable.</p>
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       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">11</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(85</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(31</td>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The following table presents net assets in China as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865114680">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 5 - Accumulated Other Comprehensive Loss<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(153</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">268</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(213</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">189</td>
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   <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;">(<em style="font: inherit;">1</em>)</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:36pt;margin-right:0pt;margin-top:0pt;text-align:justify;">&#160;</p>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865113000">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 6 - Treasury Stock<br></strong></div></th>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -URI http://asc.fasb.org/subtopic&amp;trid=2208821<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866728248">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Earnings Per Share<br></strong></div></th>
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       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">29,356,000</td>
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       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
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       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">24,656,000</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866469480">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Stock-based Compensation<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">8.</em>&#160;&#160;&#160;&#160;&#160;Stock-Based Compensation</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Under our stock-based employee compensation plan, referred to as the Fuel Tech, Inc. <em style="font: inherit;">2014</em> Long-Term Incentive Plan (Incentive Plan), awards <em style="font: inherit;"> may </em>be granted to participants in the form of Non-Qualified Stock Options, Incentive Stock Options, Stock Appreciation Rights, Restricted Stock, Restricted Stock Units (&#8220;RSUs&#8221;), Performance Awards, Bonuses or other forms of share-based or non-share-based awards or combinations thereof. Participants in the Incentive Plan <em style="font: inherit;"> may </em>be our directors, officers, employees, consultants or advisors (except consultants or advisors in capital-raising transactions) as the directors determine are key to the success of our business. There are a maximum of 5,600,676&#160;shares that <em style="font: inherit;"> may </em>be issued or reserved for awards to participants under the Incentive Plan. As of <em style="font: inherit;"> September 30, 2021</em>, Fuel Tech had 2,603,801&#160;shares available for share-based awards under the <em style="font: inherit;">2014</em> Plan.</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Stock options granted to employees under the Incentive Plans have a 10-year life and they vest as follows: 50% after the <em style="font: inherit;">second</em> anniversary of the award date, 25% after the <em style="font: inherit;">third</em> anniversary, and the final 25% after the <em style="font: inherit;">fourth</em> anniversary of the award date. Fuel Tech calculates stock compensation expense for employee option awards based on the grant date fair value of the award, less expected annual forfeitures, and recognizes expense on a straight-line basis over the <em style="font: inherit;">four</em>-year service period of the award. Stock options granted to members of our board of directors vest immediately. Stock compensation for these awards is based on the grant date fair value of the award and is recognized in expense immediately.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech uses the Black-Scholes option pricing model to estimate the grant date fair value of employee stock options. The principal variable assumptions utilized in valuing options and the methodology for estimating such model inputs include: (<em style="font: inherit;">1</em>)&#160;risk-free interest rate &#8211; an estimate based on the yield of zero&#8211;coupon treasury securities with a maturity equal to the expected life of the option; (<em style="font: inherit;">2</em>)&#160;expected volatility &#8211; an estimate based on the historical volatility of Fuel Tech&#8217;s Common Stock for a period equal to the expected life of the option; and (<em style="font: inherit;">3</em>)&#160;expected life of the option &#8211; an estimate based on historical experience including the effect of employee terminations.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Stock option activity for Fuel Tech&#8217;s Incentive Plans for the&#160;<em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021</em> was as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

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</tbody></table>

   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Restricted Stock Units</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

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</tbody></table>

   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Deferred Directors Fees</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">In addition to the Incentive Plans, Fuel Tech has a Deferred Compensation Plan for Directors (Deferred Plan). Under the terms of the Deferred Plan, Directors can elect to defer Directors&#8217; fees for shares of Fuel Tech Common Stock that are issuable at a future date as defined in the agreement. In accordance with ASC <em style="font: inherit;">718,</em> Fuel Tech accounts for these awards as equity awards as opposed to liability awards. During the <em style="font: inherit;">nine</em>&#160;month periods ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>, Fuel Tech recorded no stock-based compensation expense under the Deferred Plan.</p>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865106488">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 9 - Warrants<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_WarrantsDisclosureTextBlock', window );">Warrants Disclosure [Text Block]</a></td>
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   <p style="margin: 0pt; font-family: Times New Roman; font-size: 10pt;"><b><em style="font: inherit;">9.</em>&#160; &#160; &#160; Warrants</b></p>
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   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt; text-align: left; text-indent: 0pt;  ">On <em style="font: inherit;"> February 11, 2021, </em>Fuel Tech entered into a securities purchase agreement&#160;to issue and sell, in a private placement, 5,000,000 shares of Common Stock&#160;and 2,500,000 warrants exercisable for a total of 2,500,000 shares of Common Stock with an exercise price of $5.10 per Warrant Share, at a purchase price of $5.1625 per Share and associated warrant. The gross proceeds to the Company from the Private Placement were&#160;$25,812, before deducting placement agent fees and offering expenses of $1,783. Subject to certain ownership limitations, the Warrants are immediately exercisable upon issuance and expire on the <span style="-sec-ix-hidden:c78771892">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Warrant Shares for resale.&#160; In addition, the Company issued to the placement agent Warrants to purchase up to 350,000 shares of Common Stock.&#160; The Placement Agent Warrants are exercisable at an exercise price of $6.45&#160;per share of Common Stock and expire on the <span style="-sec-ix-hidden:c78771896">five</span> and <em style="font: inherit;">one</em>-half year anniversary of the effective date of the registration statement registering the Shares and the Warrant Shares for resale.</p>
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   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">Fuel Tech uses the Black-Scholes option pricing model to estimate the grant date fair value of the warrants. The principal variable assumptions utilized in valuing warrants and the methodology for estimating such model inputs are: (<em style="font: inherit;">1</em>)&#160;risk-free interest rate of 0.59%, an estimate based on the yield of zero&#8211;coupon treasury securities with a maturity equal to the expected life of the warrant; (<em style="font: inherit;">2</em>)&#160;expected volatility of 94.66% &#8211; an estimate based on the historical volatility of Fuel Tech&#8217;s Common Stock for a period equal to the expected life of the warrant; and (<em style="font: inherit;">3</em>)&#160;expected life of the warrant of <span style="-sec-ix-hidden:c78771903">five</span> and <em style="font: inherit;">one</em>-half years based on the term of the warrant.&#160;</p>
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   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">The calculated fair value allocated to the warrants is $7,337.&#160; This amount has been recorded as Additional paid in capital - warrants and is shown net in the Additional paid in capital line of the condensed consolidated balance sheets.&#160;&#160;</p>
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   <p style="font-family: Times New Roman; font-size: 10pt; margin: 0pt;">The issuance of warrants to purchase shares of the Company's common stock are summarized as follows:</p>
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"> <p style="font-family: Times New Roman; font-size: 10pt; margin-top: 0px; margin-bottom: 0px;">Outstanding on December 31, 2020</p> </td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">Granted</td>
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       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt;">2,850,000</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">Exercised</td>
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       <td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#8212;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">Outstanding as of September 30, 2021</td>
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       <td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">2,850,000</td>
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      The following table summarizes information about warrants outstanding and exercisable at
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       <td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;">Number Outstanding/Exercisable</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="1" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;">Weighted Average Remaining Life in Years</td>
       <td style="padding-bottom: 1px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td colspan="2" style="text-align: center; border-bottom: 1px solid rgb(0, 0, 0); width: 1%; font-family: Times New Roman; font-size: 10pt;">Weighted Average Exercise Price</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;">2,500,000</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;">4.87</td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">$</td>
       <td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;">5.10</td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td colspan="2" rowspan="1" style="width: 41%; text-align: center; font-family: Times New Roman; font-size: 10pt;">$6.45</td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16%; text-align: right; border-bottom: 1px solid rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">350,000</td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16%; text-align: center; font-family: Times New Roman; font-size: 10pt;">4.87</td>
       <td style="width: 1%; padding-bottom: 1px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">$</td>
       <td style="width: 16%; text-align: right; font-family: Times New Roman; font-size: 10pt;">6.45</td>
       <td style="width: 1%; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td colspan="2" rowspan="1" style="width: 41%; font-family: Times New Roman; font-size: 10pt;">&#160;&#160;</td>
       <td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16%; text-align: right; border-bottom: 3px double rgb(0, 0, 0); font-family: Times New Roman; font-size: 10pt;">2,850,000</td>
       <td style="width: 1%; padding-bottom: 3px; margin-left: 0pt; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="padding-bottom: 3px; width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="text-align: right; width: 16%; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure of warrants.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866469480">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 10 - Debt Financing<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">On <em style="font: inherit;"> January 8, 2021, </em>the Company received full forgiveness from the SBA for the entire balance of loan proceeds used to&#160;fund its qualified payroll&#160;expenses. The Company accounts for the PPP Loan as debt in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) <em style="font: inherit;">470,</em> Debt and accrues interest in accordance with the interest method under FASB ASC <em style="font: inherit;">835</em>-<em style="font: inherit;">30.</em>&#160; When the loan was forgiven,&#160;the Company reduced the non-current liability by the amount forgiven&#160;and recorded other income&#160;in the Condensed Consolidated Statement of Operations.&#160;&#160;</p>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866694024">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Business Segment and Geographic Financial Data<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">11.</em>&#160;&#160;&#160;&#160;&#160;Business Segment and Geographic Financial Data</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We segregate our financial results into two reportable segments representing <em style="font: inherit;">two</em> broad technology segments as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
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      <td> <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;">The Air Pollution Control technology segment includes technologies to reduce NOx emissions in flue gas from boilers, incinerators, furnaces and other stationary combustion sources. These include Low and Ultra Low NOx Burners (LNB and ULNB), Over-Fire Air (OFA) systems, NOxOUT<sup style="vertical-align:top;line-height:120%;font-size:pt">&#174;</sup> and HERT&#8482; Selective Non-Catalytic Reduction (SNCR) systems, and Advanced Selective Catalytic Reduction (ASCR<sup style="vertical-align:top;line-height:120%;font-size:pt">&#8482;</sup>) systems. Our ASCR systems include ULNB, OFA, and SNCR components, along with a downsized SCR catalyst, Ammonia Injection Grid (AIG), and Graduated Straightening Grid GSG&#8482; systems to provide high NOx reductions at significantly lower capital and operating costs than conventional SCR systems. The NOxOUT CASCADE<sup style="vertical-align:top;line-height:120%;font-size:pt">&#174;</sup> and NOxOUT-SCR<sup style="vertical-align:top;line-height:120%;font-size:pt">&#174;</sup> processes are more basic, using just SNCR and SCR catalyst components. ULTRA&#8482; technology creates ammonia at a plant site using safe urea for use with any SCR application. Flue Gas Conditioning systems are chemical injection systems offered in markets outside the U.S. and Canada to enhance electrostatic precipitator and fabric filter performance in controlling particulate emissions.</p> </td>
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      <td> <p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:justify;margin-bottom:0pt;font-size:10pt;">The FUEL CHEM<sup style="vertical-align:top;line-height:120%;font-size:pt">&#174;</sup> technology segment, which uses chemical processes in combination with advanced CFD and CKM boiler modeling, for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in furnaces and boilers through the addition of chemicals into the furnace using TIFI<sup style="vertical-align:top;line-height:120%;font-size:pt">&#174;</sup> Targeted In-Furnace Injection&#8482; technology.</p> </td>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The &#8220;Other&#8221; classification includes those profit and loss items <em style="font: inherit;">not</em> allocated to either reportable segment. There are <em style="font: inherit;">no</em> inter-segment sales that require elimination.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We evaluate performance and allocate resources based on reviewing gross margin by reportable segment. The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies (Note <em style="font: inherit;">1</em> in our annual report on Form <em style="font: inherit;">10</em>-K). We do <em style="font: inherit;">not</em> review assets by reportable segment, but rather, in aggregate for the Company as a whole.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Information about reporting segment net sales and gross margin from operations are provided below:</p>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Three months ended September 30, 2021</p> </td>
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       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,944</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,615</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(1,134</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">)</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">810</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">2,909</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">3,719</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(2,801</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(2,801</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(340</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(340</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">)</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,909</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(3,141</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">578</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Three months ended September 30, 2020</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,886</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,269</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">304</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,553</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,249</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">3,190</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,716</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,906</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(3,184</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(3,184</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(285</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(285</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,716</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(3,469</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,437</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#160;</td>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>



    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Nine months ended September 30, 2021</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">3,837</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">13,973</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,172</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(6,978</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(9,150</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,665</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,995</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">8,660</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(8,858</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(8,858</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(1,070</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(1,070</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">1,665</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">6,995</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(9,928</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(1,268</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; width: 16px;">&#160;</td>
       <td style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; width: 155px;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Nine months ended September 30, 2020</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,019</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">10,315</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,782</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(5,517</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 155px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(8,299</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">3,237</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">4,798</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 155px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">8,035</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(9,825</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(9,825</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">3,237</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">4,798</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">(10,705</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">(2,670</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
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     </tbody>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Geographic Segment Financial Data</b></p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Information concerning our operations by geographic area is provided below. Revenues are attributed to countries based on the location of the customer. Assets are those directly associated with operations of the geographic area.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,049</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,473</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">15,100</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">12,880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,510</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,682</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">2,710</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">3,454</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31,</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Assets:</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 18pt;">United States</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">46,713</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">24,524</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">4,326</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,564</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">51,039</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">30,088</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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     </tbody>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>


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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 34<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8981-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8721-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8844-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8657-108599<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8721-108599<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -URI http://asc.fasb.org/topic&amp;trid=2134510<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866599816">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 12 - Leases<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeasesTextBlock', window );">Lessee, Operating Leases [Text Block]</a></td>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">12.</em>&#160;&#160;&#160;&#160;&#160;Leases</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Leases</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Total operating lease expense for the <em style="font: inherit;">three</em> and <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>,&#160;is as follows:</p>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">44</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">47</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">133</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">157</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Short-term lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">4</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">15</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">12</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Total lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">48</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">52</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">148</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">169</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The weighted average remaining lease term was 2.45&#160;years as of <em style="font: inherit;"> September 30, 2021</em>. The weighted average discount rate was 4.55%&#160;as of <em style="font: inherit;"> September 30, 2021</em>.</p>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Remaining maturities of our existing lease liabilities as of <em style="font: inherit;"> September 30, 2021</em> were as follows:</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">&#160;</p>

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       <td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Year Ending December 31,</p> </td>
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       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Operating Leases</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2021 (excluding the nine months ended September 30, 2021)</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">44</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2022</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">132</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2023</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">115</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2024</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">29</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2025</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">7</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total lease payments</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">327</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Less imputed interest</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(52</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">275</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The following is the balance sheet classification of our existing lease liabilities as of <em style="font: inherit;"> September 30, 2021</em>:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30, 2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease liabilities - current</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">128</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">149</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease liabilities - non-current</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">147</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">237</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total operating lease liabilities</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">275</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">386</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#160;</td>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">Supplemental cash flow information related to leases, was as follows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cash paid for amounts included in the measurement of lease liabilities</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">50</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">45</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">148</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">148</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Leased assets obtained in exchange for operating lease liabilities</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">39</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">41</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">119</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">137</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

     </tbody>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>


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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -URI http://asc.fasb.org/subtopic&amp;trid=77888251<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865047976">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 13 - Accrued Liabilities<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<td class="text">&#160;<span></span>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other accrued liabilities</p> </td>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total other accrued liabilities</p> </td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,099</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866662920">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 14 - Commitments and Contingencies<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">14.</em>&#160;&#160;&#160;&#160;&#160;Commitments and Contingencies</b></p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech is subject to various claims and contingencies related to, among other things, workers compensation, general liability (including product liability), and lawsuits. The Company records liabilities where a contingent loss is probable and can be reasonably estimated. If the reasonable estimate of a probable loss is a range, the Company records the most probable estimate of the loss or the minimum amount when <em style="font: inherit;">no</em> amount within the range is a better estimate than any other amount. The Company discloses a contingent liability even if the liability is <em style="font: inherit;">not</em> probable or the amount is <em style="font: inherit;">not</em> estimable, or both, if there is a reasonable possibility that a material loss <em style="font: inherit;"> may </em>have been incurred.</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">From time to time we are involved in litigation with respect to matters arising from the ordinary conduct of our business. In the opinion of management, based upon presently available information, either adequate provision for anticipated costs have been accrued or the ultimate anticipated costs will <em style="font: inherit;">not</em> materially affect our consolidated financial position, results of operations, or cash flows.&#160; We do <em style="font: inherit;">not</em> believe we have any pending loss contingencies that are probable or reasonably possible of having a material impact on our consolidated financial position, results of operations or cash flows.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: justify;">During the <em style="font: inherit;">third</em> quarter of <em style="font: inherit;">2020,</em> the Company was notified of an equipment component failure at a foreign customer location.&#160; The failure was remedied under the warranty provision of&#160;the contract&#160;that is&#160;in place with the customer and supplier and was completed in the <em style="font: inherit;">third</em> quarter of <em style="font: inherit;">2021.</em>&#160;As of <em style="font: inherit;"> September 30, 2021</em>&#160;and <em style="font: inherit;"> December 31, </em><em style="font: inherit;">2020</em>, respectively, a charge of $0&#160;and $176&#160;was recorded in the other accrued liabilities&#160;line of the condensed consolidated balance sheets.&#160;&#160;</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Fuel Tech issues a standard product warranty with the sale of its products to customers. Our recognition of warranty liability is based primarily on analyses of warranty claims experienced in the preceding years as the nature of our historical product sales for which we offer a warranty are substantially unchanged. This approach provides an aggregate warranty accrual that is historically aligned with actual warranty claims experienced.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">There was no change in the warranty liability balance included in the other accrued liabilities line of the Condensed Consolidated Balance Sheets during the <em style="font: inherit;">nine</em> months ended <em style="font: inherit;"> September 30, 2021 </em>and <em style="font: inherit;">2020</em>. The warranty liability balance was $159 at <em style="font: inherit;"> September 30, 2021</em> and <em style="font: inherit;"> December 31, </em><em style="font: inherit;">2020</em>.</p>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948215816">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 15 - Income Taxes<br></strong></div></th>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762870786952">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 16 - Goodwill and Other Intangibles<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866675960">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866724168">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 18 - Liquidity<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
<td class="text">&#160;<span></span>
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<tr class="ro">
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b><em style="font: inherit;">18</em> &#160;&#160;&#160; Liquidity</b></p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">We continue to monitor our liquidity needs and in response to our continued losses have taken measures to reduce expenses and restructure operations which we feel are necessary to ensure we maintain sufficient working capital and liquidity to operate the business and invest in our future.</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&#160;</p>
   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">We have experienced continued declines in revenues and recurring losses historically. As a result, we have evaluated our ongoing business needs, and considered the cash requirements of our base business of Air Pollution Control (APC) and Fuel Chem businesses. This evaluation included consideration of the following: a) customer and revenue trends in our APC and Fuel Chem business segments, b) current operating structure and expenditure levels, c) current availability of working capital, and d) support for our research and development initiatives. We continue to monitor our liquidity needs and have taken measures to reduce expenses and restructure operations which we feel are necessary to ensure we maintain sufficient working capital and liquidity to operate the business and invest in our future. We believe our current cash position and net cash flows expected to be generated from operations are adequate to fund planned operations of the Company for the next <em style="font: inherit;">12</em> months.&#160;</p>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure when substantial doubt is raised about the ability to continue as a going concern. Includes, but is not limited to, principal conditions or events that raised substantial doubt about the ability to continue as a going concern, management's evaluation of the significance of those conditions or events in relation to the ability to meet its obligations, and management's plans that alleviated or are intended to mitigate the conditions or events that raise substantial doubt about the ability to continue as a going concern.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865019544">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies (Policies)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>
   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Condensed Consolidated Statements of Cash Flows:</p>
   <p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&#160;</p>

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<td class="text"><p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Leases</b></p>
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   <p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: justify;">The Company applies the provisions of Accounting Standards Codification ("ASC") <em style="font: inherit;">842,</em>&#160;Leases.&#160; The Company determines if an arrangement is a lease at inception by evaluating whether the arrangement conveys the right to use an identified asset and whether the Company obtains substantially all of the economic benefits from and has the ability to direct the use of the asset. Right-of-use ("ROU") assets and lease liabilities are recognized at the lease commencement date based on the present value of the future minimum lease payments over the lease term. Operating ROU assets also include the impact of any lease incentives. Operating leases are included in right-of-use operating lease assets, operating lease liabilities - current, and operating lease liabilities - non-current on our Condensed Consolidated Balance Sheets.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Operating lease ROU assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do <em style="font: inherit;">not</em> provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The operating lease ROU asset also includes any lease payments made and excludes lease incentives and initial direct costs incurred. Our lease terms <em style="font: inherit;"> may </em>include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.</p>
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   <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We have lease agreements with lease and non-lease components, and we elected the practical expedient to <em style="font: inherit;">not</em> separate lease and non-lease components for the majority of our leases. For certain equipment leases, such as vehicles, we account for the lease and non-lease components as a single lease component. We also elected the practical expedient to keep leases with an initial term of <em style="font: inherit;">12</em> months or less off of the Condensed Consolidated Balance Sheet.</p>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Entity's cash and cash equivalents accounting policy with respect to restricted balances.  Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for leasing arrangement entered into by lessee.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918666-209980<br></p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948428968">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 2 - Summary of Significant Accounting Policies (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the components of cash and cash equivalents.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762871502072">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Revenue (Tables)<br></strong></div></th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Spare parts</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">407</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">254</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">823</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">667</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Ancillary revenue</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">365</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">306</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">1,246</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">828</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Air Pollution Control Technology revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,944</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,886</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">3,837</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,019</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>FUEL CHEM</b></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">FUEL CHEM technology solutions</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,615</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,269</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">13,973</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">10,315</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock', window );">Revenue from External Customers by Geographic Areas [Table Text Block]</a></td>
<td class="text">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">United States</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,049</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,473</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">15,100</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">12,880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;"><b>&#160;</b></td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">121</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">195</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">338</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">400</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Europe</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">663</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">904</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">1,339</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,494</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Asia</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">726</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">583</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">1,033</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,560</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Foreign Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,510</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,682</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">2,710</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">3,454</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTableTextBlock', window );">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]</a></td>
<td class="text">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Products transferred at a point in time</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,387</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,108</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">16,042</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">11,089</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Products and services transferred over time</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,172</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">3,047</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">1,768</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5,245</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><b>Total Revenues</b></p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">7,559</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">17</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">11</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(85</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(31</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,463</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">290</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">396</td>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 5 - Accumulated Other Comprehensive Loss (Tables)<br></strong></div></th>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">268</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(213</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">189</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(1,583</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866533816">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Earnings Per Share (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762867157016">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Stock-based Compensation (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock', window );">Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]</a></td>
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<tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"><td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td><td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td><td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td><td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td><td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Grant Date</em></p> </td><td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866729608">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Business Segment and Geographic Financial Data (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">2,909</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">3,719</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(2,801</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">(2,801</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">)</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
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       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(340</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">(340</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">)</td>
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,909</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(3,141</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">578</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,886</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,269</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">8,155</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
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       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">304</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,553</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,249</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">3,190</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">2,716</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">5,906</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(3,184</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(3,184</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right; border-bottom: 1px solid rgb(0, 0, 0);">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(285</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(285</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; padding-bottom: 3px;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">3,190</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,716</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(3,469</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,437</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">&#160;</td>
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    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Nine months ended September 30, 2021</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">3,837</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">13,973</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">17,810</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,172</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(6,978</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(9,150</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,665</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,995</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">8,660</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(8,858</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(8,858</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(1,070</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(1,070</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">1,665</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">6,995</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(9,928</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">(1,268</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
      </tr>

     </tbody>
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    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Air Pollution</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">FUEL CHEM</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; width: 16px;">&#160;</td>
       <td style="text-align: center; font-family: &quot;Times New Roman&quot;; font-size: 10pt; width: 155px;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="text-align: center; font-family: Times New Roman; font-size: 10pt;"><em style="font: inherit;">&#160;</em></td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Nine months ended September 30, 2020</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Control Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Segment</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Other</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Total</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues from external customers</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">6,019</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">10,315</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#8212;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">16,334</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Cost of sales</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(2,782</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(5,517</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 155px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(8,299</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Gross margin</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">3,237</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">4,798</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 155px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">8,035</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Selling, general and administrative</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(9,825</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(9,825</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Research and development</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">(880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">(880</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">)</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating income (loss) from operations</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">3,237</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">4,798</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt; border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 16px; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 155px; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">(10,705</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">)</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0); border-top: thin solid rgb(0, 0, 0);">(2,670</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 3px;">)</td>
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     </tbody>
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   <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsByGeographicalAreasTableTextBlock', window );">Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]</a></td>
<td class="text">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
     <tbody>
      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Three Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">Nine Months Ended</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">September 30,</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Revenues:</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 12 - Leases (Tables)<br></strong></div></th>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
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       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 52%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">44</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">47</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">133</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">157</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Short-term lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">4</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">5</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">15</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">12</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt; margin-left: 9pt;">Total lease cost</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">48</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">52</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">148</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 9%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">169</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock', window );">Lessee, Operating Lease, Liability, Maturity [Table Text Block]</a></td>
<td class="text">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
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       <td style="font-family: Times New Roman; font-size: 10pt; width: 85%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Year Ending December 31,</p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">Operating Leases</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2021 (excluding the nine months ended September 30, 2021)</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">44</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2022</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">132</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2023</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">115</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2024</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">29</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">2025</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">7</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total lease payments</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">327</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Less imputed interest</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">(52</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; padding-bottom: 1px;">)</td>
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      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">275</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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     </tbody>
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   <span></span>
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</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_OperatingLeaseLiabilitiesTableTextBlock', window );">Operating Lease Liabilities [Table Text Block]</a></td>
<td class="text">
    <table border="0" cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 10pt; font-family: Times New Roman; text-indent: 0px;">
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       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="6" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;"><em style="font: inherit;">As of</em></em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">September 30, 2021</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Operating lease liabilities - current</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">128</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">149</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br></p></div>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 13 - Accrued Liabilities (Tables)<br></strong></div></th>
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       <td style="font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td colspan="2" style="text-align: center; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);"> <p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:center;margin:0pt;"><em style="font: inherit;">December 31, 2020</em></p> </td>
       <td style="font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px;">&#160;</td>
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      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt; width: 70%;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Contract liabilities (Note 3)</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">1,246</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">850</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Accrued remediation contingency (Note 14)</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; text-align: right;">&#8212;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">176</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other accrued liabilities</p> </td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0); text-align: right;">583</td>
       <td style="width: 1%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 1px solid rgb(0, 0, 0);">&#160;</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 1px solid rgb(0, 0, 0);">1,073</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 1px; margin-left: 0pt;">&#160;</td>
      </tr>

      <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom">
       <td style="font-family: Times New Roman; font-size: 10pt;"> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total other accrued liabilities</p> </td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">1,829</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0); margin-left: 0pt;">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; border-bottom: 3px double rgb(0, 0, 0);">&#160;</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">$</td>
       <td style="width: 12%; text-align: right; font-family: Times New Roman; font-size: 10pt; margin-left: 0pt; border-bottom: 3px double rgb(0, 0, 0);">2,099</td>
       <td style="width: 1%; font-family: Times New Roman; font-size: 10pt; padding-bottom: 3px; margin-left: 0pt;">&#160;</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of other current liabilities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherCurrentLiabilitiesTableTextBlock</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>dtr-types:textBlockItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TableTextBlock</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948650232">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 1 - General (Details Textual) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Feb. 11, 2021</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued', window );">Class of Warrant or Right, Number of Warrants Issued (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,850,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement', window );">Proceeds from Issuance of Private Placement</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 25,812<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Payments of Stock Issuance Costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,783<span></span>
</td>
<td class="nump">$ (0)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember', window );">Warrants Issued in Connection with Private Placement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued', window );">Class of Warrant or Right, Number of Warrants Issued (in shares)</a></td>
<td class="nump">2,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights', window );">Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)</a></td>
<td class="nump">2,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)</a></td>
<td class="nump">$ 5.10<span></span>
</td>
<td class="nump">$ 5.10<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingTerm', window );">Warrants and Rights Outstanding, Term (Year)</a></td>
<td class="text">5 years 6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember', window );">The Placement Agent Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights', window );">Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)</a></td>
<td class="nump">350,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)</a></td>
<td class="nump">$ 6.45<span></span>
</td>
<td class="nump">$ 6.45<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingTerm', window );">Warrants and Rights Outstanding, Term (Year)</a></td>
<td class="text">5 years 6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember', window );">Private Placement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Stock Issued During Period, Shares, New Issues (in shares)</a></td>
<td class="nump">5,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssuedPricePerShare', window );">Shares Issued, Price Per Share (in dollars per share)</a></td>
<td class="nump">$ 5.1625<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement', window );">Proceeds from Issuance of Private Placement</a></td>
<td class="nump">$ 25,812<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Payments of Stock Issuance Costs</a></td>
<td class="nump">$ 1,783<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents number of warrants issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Exercise price per share or per unit of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfStockIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for cost incurred directly with the issuance of an equity security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfStockIssuanceCosts</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfPrivatePlacement</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharesIssuedPricePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share or per unit amount of equity securities issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesIssuedPricePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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</div></td></tr>
</table>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WarrantsAndRightsOutstandingTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123874694&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WarrantsAndRightsOutstandingTerm</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:durationItemType</td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866604648">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalents', window );">Restricted Cash and Cash Equivalents, Total</a></td>
<td class="nump">$ 1,161<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue', window );">Restricted Cash and Cash Equivalents, Current, Total</a></td>
<td class="nump">891<span></span>
</td>
<td class="nump">$ 1,595<span></span>
</td>
<td class="nump">$ 2,025<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent', window );">Restricted Cash and Cash Equivalents, Noncurrent, Total</a></td>
<td class="nump">$ 270<span></span>
</td>
<td class="nump">$ 371<span></span>
</td>
<td class="nump">$ 367<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(1)(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalents</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6812-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 954<br> -SubTopic 210<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120413173&amp;loc=SL116631458-115580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865093448">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 2 - Summary of Significant Accounting Policies - Reconciliation of Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 35,161<span></span>
</td>
<td class="nump">$ 10,640<span></span>
</td>
<td class="nump">$ 9,418<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue', window );">Restricted cash included in current assets</a></td>
<td class="nump">891<span></span>
</td>
<td class="nump">1,595<span></span>
</td>
<td class="nump">2,025<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalentsNoncurrent', window );">Restricted cash included in long-term assets</a></td>
<td class="nump">270<span></span>
</td>
<td class="nump">$ 371<span></span>
</td>
<td class="nump">367<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows</a></td>
<td class="nump">$ 36,322<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 11,810<span></span>
</td>
</tr>
</table>
<div style="display: none;">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3521-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6812-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=123431023&amp;loc=SL98516268-108586<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3044-108585<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 954<br> -SubTopic 210<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120413173&amp;loc=SL116631458-115580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<td style="white-space:nowrap;">us-gaap_RestrictedCashAndCashEquivalentsNoncurrent</td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762959688792">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Revenue 1 (Details Textual)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_NumberOfUnitsInstalled', window );">Number Of Units Installed</a></td>
<td class="nump">1,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Contract with Customer, Liability, Current</a></td>
<td class="nump">$ 1,246<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,246<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 850<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized', window );">Contract with Customer, Liability, Revenue Recognized</a></td>
<td class="nump">$ 173<span></span>
</td>
<td class="nump">$ 97<span></span>
</td>
<td class="nump">$ 331<span></span>
</td>
<td class="nump">$ 555<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts', window );">Contract with Customer, Contracts in Progress, Number of Contracts Identified as Loss Contracts</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProvisionForLossOnContracts', window );">Provision for Loss on Contracts</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 176<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRemainingPerformanceObligation', window );">Revenue, Remaining Performance Obligation, Amount</a></td>
<td class="nump">$ 8,173<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 8,173<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerAssetNet', window );">Contract with Customer, Asset, after Allowance for Credit Loss, Total</a></td>
<td class="nump">375<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">375<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,080<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember', window );">FUEL CHEM [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerAssetNet', window );">Contract with Customer, Asset, after Allowance for Credit Loss, Total</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 269<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MinimumMember', window );">Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ContractTerm', window );">Contract Term (Month)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MaximumMember', window );">Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ContractTerm', window );">Contract Term (Month)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">18 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ContractTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The length of the contract.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ContractTerm</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of contracts in progress identified as loss contracts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_NumberOfUnitsInstalled">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of units installed.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_NumberOfUnitsInstalled</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerAssetNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130533-203044<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerAssetNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130532-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProvisionForLossOnContracts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cumulative provision for contract losses not offset against related costs accumulated on the balance sheet.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 35<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123355788&amp;loc=d3e57777-111642<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProvisionForLossOnContracts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueRemainingPerformanceObligation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of transaction price allocated to performance obligation that has not been recognized as revenue.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 13<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130556-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueRemainingPerformanceObligation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762959884760">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 3 - Revenue 2 (Details Textual)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRemainingPerformanceObligation', window );">Revenue, Remaining Performance Obligation, Amount</a></td>
<td class="nump">$ 8,173<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis=2021-10-01', window );">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRemainingPerformanceObligation', window );">Revenue, Remaining Performance Obligation, Amount</a></td>
<td class="nump">$ 5,517<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1', window );">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period (Month)</a></td>
<td class="text">12 months<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueRemainingPerformanceObligation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of transaction price allocated to performance obligation that has not been recognized as revenue.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 13<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130556-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueRemainingPerformanceObligation</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
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<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 13<br> -Subparagraph (b)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130556-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
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<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis=2021-10-01</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<td><strong> Balance Type:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948707064">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Revenue - Revenues Disaggregated by Product Technology (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">1,944<span></span>
</td>
<td class="nump">2,886<span></span>
</td>
<td class="nump">3,837<span></span>
</td>
<td class="nump">6,019<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member] | Technology Solutions [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">1,172<span></span>
</td>
<td class="nump">2,326<span></span>
</td>
<td class="nump">1,768<span></span>
</td>
<td class="nump">4,524<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member] | Spare Parts [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">407<span></span>
</td>
<td class="nump">254<span></span>
</td>
<td class="nump">823<span></span>
</td>
<td class="nump">667<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member] | Ancillary Revenue [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">365<span></span>
</td>
<td class="nump">306<span></span>
</td>
<td class="nump">1,246<span></span>
</td>
<td class="nump">828<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember', window );">FUEL CHEM [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">5,615<span></span>
</td>
<td class="nump">5,269<span></span>
</td>
<td class="nump">13,973<span></span>
</td>
<td class="nump">10,315<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember', window );">FUEL CHEM [Member] | Technology Solutions [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 5,615<span></span>
</td>
<td class="nump">$ 5,269<span></span>
</td>
<td class="nump">$ 13,973<span></span>
</td>
<td class="nump">$ 10,315<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
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<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>na</td>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ftek_TechnologySolutionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ftek_TechnologySolutionsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ftek_SparePartsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ftek_SparePartsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ftek_AncillaryRevenueMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ftek_AncillaryRevenueMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</div>
</body>
</html>
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</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>53
<FILENAME>R43.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948506696">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Revenue - Revenues Disaggregated by Geography (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=country_US', window );">UNITED STATES</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">6,049<span></span>
</td>
<td class="nump">6,473<span></span>
</td>
<td class="nump">15,100<span></span>
</td>
<td class="nump">12,880<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=srt_LatinAmericaMember', window );">Latin America [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">121<span></span>
</td>
<td class="nump">195<span></span>
</td>
<td class="nump">338<span></span>
</td>
<td class="nump">400<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=srt_EuropeMember', window );">Europe [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">663<span></span>
</td>
<td class="nump">904<span></span>
</td>
<td class="nump">1,339<span></span>
</td>
<td class="nump">1,494<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=srt_AsiaMember', window );">Asia [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">726<span></span>
</td>
<td class="nump">583<span></span>
</td>
<td class="nump">1,033<span></span>
</td>
<td class="nump">1,560<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=us-gaap_NonUsMember', window );">Non-US [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 1,510<span></span>
</td>
<td class="nump">$ 1,682<span></span>
</td>
<td class="nump">$ 2,710<span></span>
</td>
<td class="nump">$ 3,454<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=country_US">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=country_US</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=srt_LatinAmericaMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=srt_LatinAmericaMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=srt_EuropeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=srt_EuropeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=srt_AsiaMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=srt_AsiaMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=us-gaap_NonUsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=us-gaap_NonUsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</div>
</body>
</html>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>54
<FILENAME>R44.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762867869128">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Revenue - Timing of Revenue Recognition (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember', window );">Transferred at Point in Time [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">6,387<span></span>
</td>
<td class="nump">5,108<span></span>
</td>
<td class="nump">16,042<span></span>
</td>
<td class="nump">11,089<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember', window );">Transferred over Time [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 1,172<span></span>
</td>
<td class="nump">$ 3,047<span></span>
</td>
<td class="nump">$ 1,768<span></span>
</td>
<td class="nump">$ 5,245<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>55
<FILENAME>R45.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948122104">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 3 - Revenue - Components of Accounts Receivable (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableGrossCurrent', window );">Trade receivables</a></td>
<td class="nump">$ 5,423<span></span>
</td>
<td class="nump">$ 5,015<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnbilledReceivablesCurrent', window );">Unbilled receivables</a></td>
<td class="nump">375<span></span>
</td>
<td class="nump">2,348<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsAndOtherReceivablesNetCurrent', window );">Other short-term receivables</a></td>
<td class="nump">102<span></span>
</td>
<td class="nump">20<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllowanceForDoubtfulAccountsReceivable', window );">Allowance for doubtful accounts</a></td>
<td class="num">(838)<span></span>
</td>
<td class="num">(835)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsReceivableNetCurrent', window );">Total accounts receivable</a></td>
<td class="nump">$ 5,062<span></span>
</td>
<td class="nump">$ 6,548<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsAndOtherReceivablesNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsAndOtherReceivablesNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableGrossCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4428-111522<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4531-111522<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsReceivableGrossCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4428-111522<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124259787&amp;loc=d3e4531-111522<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsReceivableNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllowanceForDoubtfulAccountsReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of allowance for credit loss on accounts receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 20<br> -Section 50<br> -Paragraph 13<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124255953&amp;loc=SL82919249-210447<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123577603&amp;loc=d3e5074-111524<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 20<br> -Section 50<br> -Paragraph 13<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=124255953&amp;loc=SL82919249-210447<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 326<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=124255206&amp;loc=SL82895884-210446<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllowanceForDoubtfulAccountsReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnbilledReceivablesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnbilledReceivablesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>56
<FILENAME>R46.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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							e.nextSibling.style.display='block';
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866749720">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 4 - Restructuring Activities (Details Textual)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=country_CN', window );">CHINA</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount', window );">Discontinued Operations, Revenue, Remaining Performance Obligation, Amount</a></td>
<td class="nump">$ 10<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the amount of remaining performance obligation associated with revenue from discontinued operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_DiscontinuedOperationsRevenueRemainingPerformanceObligationAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=country_CN">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=country_CN</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762863062712">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 4 - Restructuring Activities - Charges and Net Assets (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="6">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Jun. 30, 2021</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Jun. 30, 2020</div></th>
<th class="th"><div>Mar. 31, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="nump">678<span></span>
</td>
<td class="num">$ (778)<span></span>
</td>
<td class="nump">$ 398<span></span>
</td>
<td class="nump">2,376<span></span>
</td>
<td class="num">$ (2,544)<span></span>
</td>
<td class="num">$ (2,567)<span></span>
</td>
<td class="nump">298<span></span>
</td>
<td class="num">(2,735)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">51,039<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">51,039<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 30,088<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">4,595<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">4,595<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7,767<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=country_CN', window );">CHINA</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">17<span></span>
</td>
<td class="nump">11<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss</a></td>
<td class="num">(47)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">$ (73)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(85)<span></span>
</td>
<td class="num">$ (31)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">1,444<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,444<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,463<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">290<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">290<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">396<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsNet', window );">Total net assets</a></td>
<td class="nump">$ 1,154<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,154<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,067<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(12))<br> -URI http://asc.fasb.org/extlink&amp;oid=120400017&amp;loc=d3e572229-122910<br><br>Reference 7: 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-Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 13: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of net assets (liabilities).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=77885760&amp;loc=SL35686385-199418<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 205<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=118262037&amp;loc=d3e9915-115836<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 220<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(7))<br> -URI http://asc.fasb.org/extlink&amp;oid=120401555&amp;loc=SL114874367-224272<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 210<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.6-05(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=120401414&amp;loc=d3e604008-122996<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 220<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(6))<br> -URI http://asc.fasb.org/extlink&amp;oid=120401555&amp;loc=SL114874367-224272<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19-26)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124433192&amp;loc=SL2890621-112765<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (d)<br> -URI 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-Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI 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Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 34: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 35: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=country_CN">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=country_CN</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762980955144">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Note 5 - Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 45,898<span></span>
</td>
<td class="nump">$ 21,130<span></span>
</td>
<td class="nump">$ 22,321<span></span>
</td>
<td class="nump">$ 26,175<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">46,444<span></span>
</td>
<td class="nump">23,831<span></span>
</td>
<td class="nump">46,444<span></span>
</td>
<td class="nump">23,831<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember', window );">AOCI Attributable to Parent [Member]</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Beginning balance</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,430)<span></span>
</td>
<td class="num">(1,857)<span></span>
</td>
<td class="num">(1,370)<span></span>
</td>
<td class="num">(1,778)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent', window );">Foreign currency translation adjustments (1)</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="num">(153)<span></span>
</td>
<td class="nump">268<span></span>
</td>
<td class="num">(213)<span></span>
</td>
<td class="nump">189<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Ending balance</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">$ (1,583)<span></span>
</td>
<td class="num">$ (1,589)<span></span>
</td>
<td class="num">$ (1,583)<span></span>
</td>
<td class="num">$ (1,589)<span></span>
</td>
</tr>
<tr><td colspan="5"></td></tr>
<tr><td colspan="5"><table class="outerFootnotes" width="100%"><tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[1]</td>
<td style="vertical-align: top;" valign="top">In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of other comprehensive income (loss) attributable to parent entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669625-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4569643-111683<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=124509347&amp;loc=SL7669619-108580<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=123454820&amp;loc=SL4569616-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=122038336&amp;loc=d3e74512-122707<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>59
<FILENAME>R49.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866659000">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 6 - Treasury Stock (Details Textual) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockShares', window );">Treasury Stock, Shares, Ending Balance (in shares)</a></td>
<td class="nump">963,509<span></span>
</td>
<td class="nump">948,347<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValue', window );">Treasury Stock, Value, Ending Balance</a></td>
<td class="nump">$ 2,234<span></span>
</td>
<td class="nump">$ 2,182<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29,30)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6405834&amp;loc=d3e23315-112656<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29,30)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>60
<FILENAME>R50.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865051032">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Earnings Per Share (Details Textual)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2020 </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)</a></td>
<td class="nump">520,000<span></span>
</td>
</tr>
</table>
<div style="display: none;"><table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table></div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>61
<FILENAME>R51.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762864912968">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Earnings Per Share - Earnings Per Share (Details) - shares<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic weighted-average shares (in shares)</a></td>
<td class="nump">30,264,000<span></span>
</td>
<td class="nump">24,701,000<span></span>
</td>
<td class="nump">29,356,000<span></span>
</td>
<td class="nump">24,656,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities', window );">Conversion of unsecured loan notes (in shares)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements', window );">Unexercised options and unvested RSUs (in shares)</a></td>
<td class="nump">71,000<span></span>
</td>
<td class="nump">419,000<span></span>
</td>
<td class="nump">126,000<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted weighted-average shares (in shares)</a></td>
<td class="nump">30,335,000<span></span>
</td>
<td class="nump">25,120,000<span></span>
</td>
<td class="nump">29,482,000<span></span>
</td>
<td class="nump">24,656,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 40<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1930-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e2029-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1707-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28A<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1500-109256<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 23<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1757-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=125511455&amp;loc=d3e1448-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762867322248">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Stock-based Compensation (Details Textual) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized', window );">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total</a></td>
<td class="nump">$ 39<span></span>
</td>
<td class="nump">$ 39<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">5 months 19 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis=ftek_DeferredCompensationPlanForDirectorsMember', window );">Deferred Compensation Plan for Directors [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense', window );">Deferred Compensation Arrangement with Individual, Compensation Expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized', window );">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)</a></td>
<td class="nump">5,600,676<span></span>
</td>
<td class="nump">5,600,676<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant', window );">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)</a></td>
<td class="nump">2,603,801<span></span>
</td>
<td class="nump">2,603,801<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense', window );">Share-based Payment Arrangement, Expense, Tax Benefit</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Share-based Payment Arrangement, Option [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod', window );">Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">10 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized', window );">Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Share-based Payment Arrangement, Option [Member] | Share-based Payment Arrangement, Tranche One [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Share-based Payment Arrangement, Option [Member] | Share-based Payment Arrangement, Tranche Two [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">25.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Share-based Payment Arrangement, Option [Member] | Share-based Payment Arrangement, Tranche Three [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">25.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome', window );">Share-Based Compensation Arrangement By Share-based Payment Award, Performance Threshold, Operating Income</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue', window );">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 75<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">2 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche One [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">33.33%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Two [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">33.33%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember', window );">The 2014 Long-term Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member] | Share-based Payment Arrangement, Tranche Three [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage', window );">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">33.33%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The threshold of operating income would trigger the vesting of share-based compensation awards.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ShareBasedCompensationArrangementBySharebasedPaymentAwardPerformanceThresholdOperatingIncome</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The compensation expense recognized during the period pertaining to the deferred compensation arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 710<br> -SubTopic 10<br> -Section 30<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6409875&amp;loc=d3e20015-108363<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cost not yet recognized for nonvested award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of tax benefit for recognition of expense of award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares authorized for issuance under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of vesting of award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis=ftek_DeferredCompensationPlanForDirectorsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis=ftek_DeferredCompensationPlanForDirectorsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PlanNameAxis=ftek_The2014LongTermIncentivePlanMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheOneMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheTwoMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VestingAxis=us-gaap_ShareBasedCompensationAwardTrancheThreeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>63
<FILENAME>R53.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866609480">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Stock-based Compensation - Stock-based Compensation (Details) - Selling, General and Administrative Expenses [Member] - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Stock options and restricted stock units, net of forfeited</a></td>
<td class="nump">$ 21<span></span>
</td>
<td class="nump">$ 57<span></span>
</td>
<td class="nump">$ 61<span></span>
</td>
<td class="nump">$ 207<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax', window );">After-tax effect of stock-based compensation</a></td>
<td class="nump">$ 21<span></span>
</td>
<td class="nump">$ 57<span></span>
</td>
<td class="nump">$ 61<span></span>
</td>
<td class="nump">$ 207<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5047-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=122041274&amp;loc=d3e301413-122809<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after tax, of expense for award under share-based payment arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpenseNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>64
<FILENAME>R54.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762870812856">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Stock-based Compensation - Stock Option Activity (Details)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Beginning balance, number of options outstanding (in shares) | shares</a></td>
<td class="nump">484,500<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Beginning balance, option, weighted average exercise price (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 3.57<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Granted, options (in shares) | shares</a></td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice', window );">Granted, option, weighted average exercise price (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Exercised, options (in shares) | shares</a></td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice', window );">Exercised, option, weighted average exercise price (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod', window );">Expired or forfeited, options (in shares) | shares</a></td>
<td class="num">(50,000)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice', window );">Expired or forfeited, option, weighted average exercise price (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 8.16<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Ending balance, number of options outstanding (in shares) | shares</a></td>
<td class="nump">434,500<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Ending balance, option, weighted average exercise price (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 3.05<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2', window );">Outstanding, weighted average remaining contractual term (Year)</a></td>
<td class="text">3 years 4 months 2 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Outstanding, aggregate intrinsic value | $</a></td>
<td class="nump">$ 73<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber', window );">Exercisable, options (in shares) | shares</a></td>
<td class="nump">434,500<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice', window );">Exercisable, option, weighted average exercise price (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 3.05<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1', window );">Exercisable, weighted average remaining contractual term (Year)</a></td>
<td class="text">3 years 4 months 2 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1', window );">Exercisable, aggregate intrinsic value | $</a></td>
<td class="nump">$ 73<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)-(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price of options that were either forfeited or expired.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)-(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gross number of share options (or share units) granted during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of options outstanding, including both vested and non-vested options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which option holders acquired shares when converting their stock options into shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1</td>
</tr>
<tr>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>na</td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of share options (or share units) exercised during the current period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised</td>
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762870964120">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Stock-based Compensation - Restricted Stock Activity (Details) - Restricted Stock Units (RSUs) [Member]<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2021 </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber', window );">Beginning balance, unvested restricted stock units, shares (in shares) | shares</a></td>
<td class="nump">100,005<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue', window );">Beginning balance, unvested restricted stock units, weighted average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 4.08<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Granted, restricted stock units, shares (in shares) | shares</a></td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Granted, restricted stock units, weighted average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod', window );">Forfeited, restricted stock units, shares (in shares) | shares</a></td>
<td class="num">(5,000)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue', window );">Forfeited, restricted stock units, weighted average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 0.97<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod', window );">Vested, restricted stock units, shares (in shares) | shares</a></td>
<td class="num">(50,002)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue', window );">Vested, restricted stock units, weighted average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 1.50<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber', window );">Ending balance, unvested restricted stock units, shares (in shares) | shares</a></td>
<td class="nump">45,003<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue', window );">Ending balance, unvested restricted stock units, weighted average grant date fair value (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 7.29<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=120381028&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762867847528">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 9 - Warrants (Details Textual)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Feb. 11, 2021 </div>
<div>USD ($) </div>
<div>$ / shares </div>
<div>shares</div>
</th>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($) </div>
<div>$ / shares </div>
<div>shares</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued', window );">Class of Warrant or Right, Number of Warrants Issued (in shares) | shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,850,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement', window );">Proceeds from Issuance of Private Placement | $</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 25,812<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Payments of Stock Issuance Costs | $</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,783<span></span>
</td>
<td class="nump">$ (0)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstanding', window );">Warrants and Rights Outstanding | $</a></td>
<td class="nump">$ 7,337<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember', window );">Measurement Input, Risk Free Interest Rate [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMeasurementInput', window );">Warrants and Rights Outstanding, Measurement Input</a></td>
<td class="nump">0.0059<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember', window );">Measurement Input, Price Volatility [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMeasurementInput', window );">Warrants and Rights Outstanding, Measurement Input</a></td>
<td class="nump">0.9466<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember', window );">Measurement Input, Expected Term [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingMeasurementInput', window );">Warrants and Rights Outstanding, Measurement Input</a></td>
<td class="nump">5.5<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember', window );">Warrants Issued in Connection with Private Placement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued', window );">Class of Warrant or Right, Number of Warrants Issued (in shares) | shares</a></td>
<td class="nump">2,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights', window );">Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares</a></td>
<td class="nump">2,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 5.10<span></span>
</td>
<td class="nump">$ 5.10<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingTerm', window );">Warrants and Rights Outstanding, Term (Year)</a></td>
<td class="text">5 years 6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember', window );">The Placement Agent Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights', window );">Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares</a></td>
<td class="nump">350,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 6.45<span></span>
</td>
<td class="nump">$ 6.45<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WarrantsAndRightsOutstandingTerm', window );">Warrants and Rights Outstanding, Term (Year)</a></td>
<td class="text">5 years 6 months<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember', window );">Private Placement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Stock Issued During Period, Shares, New Issues (in shares) | shares</a></td>
<td class="nump">5,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesIssuedPricePerShare', window );">Shares Issued, Price Per Share (in dollars per share) | $ / shares</a></td>
<td class="nump">$ 5.1625<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement', window );">Proceeds from Issuance of Private Placement | $</a></td>
<td class="nump">$ 25,812<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfStockIssuanceCosts', window );">Payments of Stock Issuance Costs | $</a></td>
<td class="nump">$ 1,783<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents number of warrants issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Exercise price per share or per unit of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfStockIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for cost incurred directly with the issuance of an equity security.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfStockIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfPrivatePlacement">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfPrivatePlacement</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharesIssuedPricePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Per share or per unit amount of equity securities issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesIssuedPricePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WarrantsAndRightsOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WarrantsAndRightsOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WarrantsAndRightsOutstandingMeasurementInput">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123874694&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WarrantsAndRightsOutstandingMeasurementInput</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:decimalItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WarrantsAndRightsOutstandingTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (bbb)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123874694&amp;loc=d3e19207-110258<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WarrantsAndRightsOutstandingTerm</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>67
<FILENAME>R57.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866666504">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 9 - Warrants - Warrant Activity (Details)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2021 </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Beginning balance (in shares)</a></td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued', window );">Granted (in shares)</a></td>
<td class="nump">2,850,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightExercisedDuringPeriod', window );">Exercised (in shares)</a></td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Ending balance (in shares)</a></td>
<td class="nump">2,850,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ClassOfWarrantOrRightExercisedDuringPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of warrants or rights exercised during period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ClassOfWarrantOrRightExercisedDuringPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents number of warrants issued.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ClassOfWarrantOrRightNumberOfWarrantsIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>68
<FILENAME>R58.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762948491240">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 9 - Warrants - Summary of Warrants Outstanding and Exerciseable (Details) - $ / shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Feb. 11, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number outstanding/ exercisable (in shares)</a></td>
<td class="nump">2,850,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember', window );">Warrants Issued in Connection with Private Placement [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number outstanding/ exercisable (in shares)</a></td>
<td class="nump">2,500,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife', window );">Weighted average remaining life (Year)</a></td>
<td class="text">4 years 10 months 13 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Weighted average exercise price (in dollars per share)</a></td>
<td class="nump">$ 5.10<span></span>
</td>
<td class="nump">$ 5.10<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember', window );">The Placement Agent Warrants [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightOutstanding', window );">Number outstanding/ exercisable (in shares)</a></td>
<td class="nump">350,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife', window );">Weighted average remaining life (Year)</a></td>
<td class="text">4 years 10 months 13 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Weighted average exercise price (in dollars per share)</a></td>
<td class="nump">$ 6.45<span></span>
</td>
<td class="nump">$ 6.45<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average remaining life of warrants or rights.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_ClassOfWarrantOrRightWeightedAverageRemainingLife</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Exercise price per share or per unit of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=123467817&amp;loc=d3e21475-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of warrants or rights outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightAxis=ftek_WarrantsIssuedInConnectionWithPrivatePlacementMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfWarrantOrRightAxis=ftek_ThePlacementAgentWarrantsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>69
<FILENAME>R59.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762871779672">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 10 - Debt Financing (Details Textual) - Paycheck Protection Program CARES Act [Member] - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jan. 08, 2021</div></th>
<th class="th"><div>Apr. 17, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfLongTermDebt', window );">Proceeds from Issuance of Long-term Debt, Total</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,556<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 1,556<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentDecreaseForgiveness', window );">Debt Instrument, Decrease, Forgiveness</a></td>
<td class="nump">$ 1,556<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentDecreaseForgiveness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentDecreaseForgiveness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfLongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfLongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=ftek_PaycheckProtectionProgramCaresActMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=ftek_PaycheckProtectionProgramCaresActMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>70
<FILENAME>R60.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762866370888">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Business Segment and Geographic Financial Data (Details Textual)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2021</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NumberOfReportableSegments', window );">Number of Reportable Segments</a></td>
<td class="nump">2<span></span>
</td>
</tr>
</table>
<div style="display: none;"><table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NumberOfReportableSegments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 18<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8672-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NumberOfReportableSegments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table></div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>71
<FILENAME>R61.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762872781576">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Business Segment and Geographic Financial Data - Reporting Segment Net Sales and Gross Margin (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues from external customers</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of sales</a></td>
<td class="num">(3,840)<span></span>
</td>
<td class="num">(2,249)<span></span>
</td>
<td class="num">(9,150)<span></span>
</td>
<td class="num">(8,299)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross margin</a></td>
<td class="nump">3,719<span></span>
</td>
<td class="nump">5,906<span></span>
</td>
<td class="nump">8,660<span></span>
</td>
<td class="nump">8,035<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative</a></td>
<td class="num">(2,801)<span></span>
</td>
<td class="num">(3,184)<span></span>
</td>
<td class="num">(8,858)<span></span>
</td>
<td class="num">(9,825)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="num">(340)<span></span>
</td>
<td class="num">(285)<span></span>
</td>
<td class="num">(1,070)<span></span>
</td>
<td class="num">(880)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income (loss) from operations</a></td>
<td class="nump">578<span></span>
</td>
<td class="nump">2,437<span></span>
</td>
<td class="num">(1,268)<span></span>
</td>
<td class="num">(2,670)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues from external customers</a></td>
<td class="nump">1,944<span></span>
</td>
<td class="nump">2,886<span></span>
</td>
<td class="nump">3,837<span></span>
</td>
<td class="nump">6,019<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of sales</a></td>
<td class="num">(1,134)<span></span>
</td>
<td class="nump">304<span></span>
</td>
<td class="num">(2,172)<span></span>
</td>
<td class="num">(2,782)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross margin</a></td>
<td class="nump">810<span></span>
</td>
<td class="nump">3,190<span></span>
</td>
<td class="nump">1,665<span></span>
</td>
<td class="nump">3,237<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income (loss) from operations</a></td>
<td class="nump">810<span></span>
</td>
<td class="nump">3,190<span></span>
</td>
<td class="nump">1,665<span></span>
</td>
<td class="nump">3,237<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember', window );">FUEL CHEM [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues from external customers</a></td>
<td class="nump">5,615<span></span>
</td>
<td class="nump">5,269<span></span>
</td>
<td class="nump">13,973<span></span>
</td>
<td class="nump">10,315<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of sales</a></td>
<td class="num">(2,706)<span></span>
</td>
<td class="num">(2,553)<span></span>
</td>
<td class="num">(6,978)<span></span>
</td>
<td class="num">(5,517)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross margin</a></td>
<td class="nump">2,909<span></span>
</td>
<td class="nump">2,716<span></span>
</td>
<td class="nump">6,995<span></span>
</td>
<td class="nump">4,798<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income (loss) from operations</a></td>
<td class="nump">2,909<span></span>
</td>
<td class="nump">2,716<span></span>
</td>
<td class="nump">6,995<span></span>
</td>
<td class="nump">4,798<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember', window );">Other Segments [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues from external customers</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfRevenue', window );">Cost of sales</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross margin</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative</a></td>
<td class="num">(2,801)<span></span>
</td>
<td class="num">(3,184)<span></span>
</td>
<td class="num">(8,858)<span></span>
</td>
<td class="num">(9,825)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="num">(340)<span></span>
</td>
<td class="num">(285)<span></span>
</td>
<td class="num">(1,070)<span></span>
</td>
<td class="num">(880)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income (loss) from operations</a></td>
<td class="num">$ (3,141)<span></span>
</td>
<td class="num">$ (3,469)<span></span>
</td>
<td class="num">$ (9,928)<span></span>
</td>
<td class="num">$ (10,705)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostOfRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate cost of goods produced and sold and services rendered during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123367319&amp;loc=SL114868664-224227<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(5))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1A<br> -Subparagraph (SX 210.13-01(a)(4)(ii))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442526-122756<br><br>Reference 14: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iv))<br> -URI http://asc.fasb.org/extlink&amp;oid=124359900&amp;loc=SL124442552-122756<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 31<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8924-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 4: 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.</p></div>
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<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762955320968">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Business Segment and Geographic Financial Data - Geographic Segment Financial Data (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 7,559<span></span>
</td>
<td class="nump">$ 8,155<span></span>
</td>
<td class="nump">$ 17,810<span></span>
</td>
<td class="nump">$ 16,334<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NoncurrentAssets', window );">Assets</a></td>
<td class="nump">51,039<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">51,039<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 30,088<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=country_US', window );">UNITED STATES</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">6,049<span></span>
</td>
<td class="nump">6,473<span></span>
</td>
<td class="nump">15,100<span></span>
</td>
<td class="nump">12,880<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NoncurrentAssets', window );">Assets</a></td>
<td class="nump">46,713<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">46,713<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">24,524<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_StatementGeographicalAxis=us-gaap_NonUsMember', window );">Non-US [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">1,510<span></span>
</td>
<td class="nump">$ 1,682<span></span>
</td>
<td class="nump">2,710<span></span>
</td>
<td class="nump">$ 3,454<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NoncurrentAssets', window );">Assets</a></td>
<td class="nump">$ 4,326<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 4,326<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 5,564<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NoncurrentAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NoncurrentAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8906-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 40<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9031-108599<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 41<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9038-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8933-108599<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130543-203045<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e8736-108599<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=123359005&amp;loc=d3e9054-108599<br><br>Reference 10: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130545-203045<br><br>Reference 11: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI http://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=country_US">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=country_US</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementGeographicalAxis=us-gaap_NonUsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_StatementGeographicalAxis=us-gaap_NonUsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762864900104">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 12 - Leases (Details Textual)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_NumberOfOperatingLeases', window );">Number of Operating Leases</a></td>
<td class="nump">7<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FinanceLeaseLiability', window );">Finance Lease, Liability, Total</a></td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1', window );">Operating Lease, Weighted Average Remaining Lease Term (Year)</a></td>
<td class="text">2 years 5 months 12 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent', window );">Operating Lease, Weighted Average Discount Rate, Percent</a></td>
<td class="nump">4.55%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MinimumMember', window );">Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm', window );">Lessee, Operating Lease, Remaining Lease Term (Month)</a></td>
<td class="text">2 months<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MaximumMember', window );">Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm', window );">Lessee, Operating Lease, Remaining Lease Term (Month)</a></td>
<td class="text">4 years<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_NumberOfOperatingLeases">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of operating lease arrangements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_NumberOfOperatingLeases</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinanceLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from finance lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FinanceLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918673-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseRemainingLeaseTerm</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average discount rate for operating lease calculated at point in time.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=123414884&amp;loc=SL77918982-209971<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=123414884&amp;loc=SL77918982-209971<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>74
<FILENAME>R64.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762870864568">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 12 - Leases - Operating Lease Expense (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseCost', window );">Operating lease cost</a></td>
<td class="nump">$ 44<span></span>
</td>
<td class="nump">$ 47<span></span>
</td>
<td class="nump">$ 133<span></span>
</td>
<td class="nump">$ 157<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermLeaseCost', window );">Short-term lease cost</a></td>
<td class="nump">4<span></span>
</td>
<td class="nump">5<span></span>
</td>
<td class="nump">15<span></span>
</td>
<td class="nump">12<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeaseCost', window );">Total lease cost</a></td>
<td class="nump">$ 48<span></span>
</td>
<td class="nump">$ 52<span></span>
</td>
<td class="nump">$ 148<span></span>
</td>
<td class="nump">$ 169<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lease cost recognized by lessee for lease contract.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=123414884&amp;loc=SL77918982-209971<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=123414884&amp;loc=SL77918982-209971<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermLeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of short-term lease cost, excluding expense for lease with term of one month or less.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=123414884&amp;loc=SL77918982-209971<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermLeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>75
<FILENAME>R65.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865042344">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 12 - Leases - Remaining Maturities of Existing Lease Liabilities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear', window );">2021 (excluding the nine months ended September 30, 2021)</a></td>
<td class="nump">$ 44<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths', window );">2022</a></td>
<td class="nump">132<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo', window );">2023</a></td>
<td class="nump">115<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree', window );">2024</a></td>
<td class="nump">29<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour', window );">2025</a></td>
<td class="nump">7<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue', window );">Total lease payments</a></td>
<td class="nump">327<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount', window );">Less imputed interest</a></td>
<td class="num">(52)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiability', window );">Total</a></td>
<td class="nump">$ 275<span></span>
</td>
<td class="nump">$ 386<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>76
<FILENAME>R66.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762865044056">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 12 - Leases - Lease Liabilities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Operating lease liabilities - current</a></td>
<td class="nump">$ 128<span></span>
</td>
<td class="nump">$ 149<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Operating lease liabilities - non-current</a></td>
<td class="nump">147<span></span>
</td>
<td class="nump">237<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiability', window );">Total operating lease liabilities</a></td>
<td class="nump">$ 275<span></span>
</td>
<td class="nump">$ 386<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>77
<FILENAME>R67.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762867076904">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 12 - Leases - Supplemental Cash Flow Information (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasePayments', window );">Cash paid for amounts included in the measurement of lease liabilities</a></td>
<td class="nump">$ 50<span></span>
</td>
<td class="nump">$ 45<span></span>
</td>
<td class="nump">$ 148<span></span>
</td>
<td class="nump">$ 148<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability', window );">Leased assets obtained in exchange for operating lease liabilities</a></td>
<td class="nump">$ 39<span></span>
</td>
<td class="nump">$ 41<span></span>
</td>
<td class="nump">$ 119<span></span>
</td>
<td class="nump">$ 137<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeasePayments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918643-209977<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasePayments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase in right-of-use asset obtained in exchange for operating lease liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=123414884&amp;loc=SL77918982-209971<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=123408670&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>78
<FILENAME>R68.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762871413432">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 13 - Accrued Liabilities - Components of Other Accrued Liabilities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Contract liabilities (Note 3)</a></td>
<td class="nump">$ 1,246<span></span>
</td>
<td class="nump">$ 850<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedEnvironmentalLossContingenciesCurrent', window );">Accrued remediation contingency (Note 14)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">176<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ftek_OtherAccruedLiabilitiesMiscellaneousCurrent', window );">Other accrued liabilities</a></td>
<td class="nump">583<span></span>
</td>
<td class="nump">1,073<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAccruedLiabilitiesCurrent', window );">Total other accrued liabilities</a></td>
<td class="nump">$ 1,829<span></span>
</td>
<td class="nump">$ 2,099<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ftek_OtherAccruedLiabilitiesMiscellaneousCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of miscellaneous expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ftek_OtherAccruedLiabilitiesMiscellaneousCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ftek_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedEnvironmentalLossContingenciesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 30<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=6393242&amp;loc=d3e13207-110859<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 30<br> -Section 50<br> -Paragraph 10<br> -Subparagraph (d)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6393242&amp;loc=d3e13237-110859<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14326-108349<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6911-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedEnvironmentalLossContingenciesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130531-203044<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=123360276&amp;loc=SL49130532-203044<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=123351226&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6911-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e7018-107765<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6935-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>79
<FILENAME>R69.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762872639112">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 14 - Commitments and Contingencies (Details Textual) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease', window );">Standard Product Warranty Accrual, Period Increase (Decrease), Total</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StandardProductWarrantyAccrual', window );">Standard Product Warranty Accrual, Ending Balance</a></td>
<td class="nump">159<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 159<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingenciesByNatureOfContingencyAxis=ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember', window );">Failure of Equipment to Be Remedied Under Warranty Provision [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingencyAccrualAtCarryingValue', window );">Loss Contingency Accrual, Ending Balance</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 176<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LossContingencyAccrualAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of loss contingency liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=121557415&amp;loc=d3e14326-108349<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LossContingencyAccrualAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StandardProductWarrantyAccrual">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 460<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (c)(1),(c)(5)<br> -URI http://asc.fasb.org/extlink&amp;oid=123368208&amp;loc=d3e12565-110249<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StandardProductWarrantyAccrual</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in the standard product warranty accrual. Excludes extended product warranties.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 460<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=123368208&amp;loc=d3e12565-110249<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StandardProductWarrantyAccrualPeriodIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LossContingenciesByNatureOfContingencyAxis=ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LossContingenciesByNatureOfContingencyAxis=ftek_FailureOfEquipmentToBeRemediedUnderWarrantyProvisionMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762959884760">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 15 - Income Taxes (Details Textual) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2021</div></th>
<th class="th"><div>Sep. 30, 2020</div></th>
<th class="th"><div>Dec. 31, 2020</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EffectiveIncomeTaxRateContinuingOperations', window );">Effective Income Tax Rate Reconciliation, Percent, Total</a></td>
<td class="nump">3.20%<span></span>
</td>
<td class="num">(5.80%)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate', window );">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</a></td>
<td class="nump">21.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrecognizedTaxBenefits', window );">Unrecognized Tax Benefits, Ending Balance</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EffectiveIncomeTaxRateContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32687-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EffectiveIncomeTaxRateContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of domestic federal statutory tax rate applicable to pretax income (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h)(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32687-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>dtr-types:percentItemType</td>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnrecognizedTaxBenefits">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of unrecognized tax benefits.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10B<br> -URI http://asc.fasb.org/extlink&amp;oid=123427490&amp;loc=SL37586934-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 15A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=SL6600010-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnrecognizedTaxBenefits</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>81
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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</head>
<body>
<span style="display: none;">v3.21.2</span><table class="report" border="0" cellspacing="2" id="idm139762872536264">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 16 - Goodwill and Other Intangibles (Details Textual)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2020 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2020 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NumberOfReportingUnits', window );">Number of Reporting Units</a></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill, Ending Balance</a></td>
<td class="nump">$ 2,116<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,116<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GoodwillImpairmentLoss', window );">Goodwill, Impairment Loss</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ImpairmentOfIntangibleAssetsFinitelived', window );">Impairment of Intangible Assets, Finite-lived</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember', window );">Air Pollution Control [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill, Ending Balance</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember', window );">FUEL CHEM [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill, Ending Balance</a></td>
<td class="nump">$ 2,116<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,116<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(10)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=120398452&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=120320667&amp;loc=SL49117168-202975<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 852<br> -SubTopic 10<br> -Section 55<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=84165509&amp;loc=d3e56426-112766<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=99380562&amp;loc=d3e13770-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Goodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GoodwillImpairmentLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=121556970&amp;loc=d3e13854-109267<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=121556970&amp;loc=d3e13816-109267<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=99380562&amp;loc=d3e13777-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GoodwillImpairmentLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ImpairmentOfIntangibleAssetsFinitelived">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=123570139&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16373-109275<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ImpairmentOfIntangibleAssetsFinitelived</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NumberOfReportingUnits">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NumberOfReportingUnits</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=ftek_AirPollutionControlMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>na</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementBusinessSegmentsAxis=ftek_FUELCHEMMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<TYPE>EXCEL
<SEQUENCE>82
<FILENAME>Financial_Report.xlsx
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
