<SEC-DOCUMENT>0001493152-22-012212.txt : 20220506
<SEC-HEADER>0001493152-22-012212.hdr.sgml : 20220506
<ACCEPTANCE-DATETIME>20220505145541
ACCESSION NUMBER:		0001493152-22-012212
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		75
CONFORMED PERIOD OF REPORT:	20220331
FILED AS OF DATE:		20220505
DATE AS OF CHANGE:		20220505

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PERMA FIX ENVIRONMENTAL SERVICES INC
		CENTRAL INDEX KEY:			0000891532
		STANDARD INDUSTRIAL CLASSIFICATION:	HAZARDOUS WASTE MANAGEMENT [4955]
		IRS NUMBER:				581954497
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11596
		FILM NUMBER:		22895674

	BUSINESS ADDRESS:	
		STREET 1:		8302 DUNWOODY PLACE
		STREET 2:		SUITE 250
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30350
		BUSINESS PHONE:		7705879898

	MAIL ADDRESS:	
		STREET 1:		8302 DUNWOODY PLACE
		STREET 2:		SUITE 250
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30350
</SEC-HEADER>
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<TYPE>10-Q
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<p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 18pt"><b>UNITED
STATES</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 18pt"><b>SECURITIES
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D.C. 20549</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<!-- Field: Rule-Page --><div style="margin-left: auto; margin-right: auto; width: 50%"><div style="border-top: Black 1.5pt solid; font-size: 1pt">&#160;</div></div><!-- Field: /Rule-Page -->

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b></b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Or</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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                                            Dunwoody Place</ix:nonNumeric></span></span>, <span id="xdx_907_edei--EntityAddressAddressLine2_c20220101__20220331_zXuJeDvgGAC7"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:EntityAddressAddressLine2">Suite 250</ix:nonNumeric></span>, <span id="xdx_90F_edei--EntityAddressCityOrTown_c20220101__20220331_zVLxMlzRqcj8"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:EntityAddressCityOrTown">Atlanta</ix:nonNumeric></span>, <span id="xdx_904_edei--EntityAddressStateOrProvince_c20220101__20220331_zo7o4YdHQaPf"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:EntityAddressStateOrProvince">GA</ix:nonNumeric></span></span></b></span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>(Address
    of principal executive offices)</i></span></p></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_903_edei--EntityAddressPostalZipCode_c20220101__20220331_zuepcGjbAeM1"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:EntityAddressPostalZipCode">30350</ix:nonNumeric></span></b></span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>(Zip
    Code)</i></span></p></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td colspan="2" style="font: 10pt Times New Roman, Times, Serif"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(<span id="xdx_909_edei--CityAreaCode_c20220101__20220331_zSXRABYoRWCd"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:CityAreaCode">770</ix:nonNumeric></span>)
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    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>(Registrant&#8217;s
    telephone number)</i></span></p></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; width: 80%; border-collapse: collapse; margin-right: auto">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 100%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">N/A</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Former
name, former address and former fiscal year, if changed since last report)</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Securities
registered pursuant to Section 12(b) of the Act:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 35%; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title
    of each class</span></td>
    <td style="text-align: center; width: 2%">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center; width: 25%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trading
    Symbol</span></td>
    <td style="text-align: center; width: 2%">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 36%; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name
    of each exchange on which registered</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_901_edei--Security12bTitle_c20220101__20220331_z1l7udcndWN9"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:Security12bTitle">Common
    Stock, $.001 Par Value</ix:nonNumeric></span></span></td>
    <td style="text-align: center">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_90C_edei--TradingSymbol_c20220101__20220331_zXExGvvj6PIa"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:TradingSymbol">PESI</ix:nonNumeric></span></span></td>
    <td style="text-align: center">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_908_edei--SecurityExchangeName_c20220101__20220331_z0UYjTmUy5X3"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName">NASDAQ</ix:nonNumeric></span>
    Capital Markets</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the Registrant (1) has 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 the Registrant was required to file such reports), and (2)
has been subject to such filing requirements for the past 90 days.</span></p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_90C_edei--EntityCurrentReportingStatus_c20220101__20220331_zNtuZGH6Gts4"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:EntityCurrentReportingStatus">Yes</ix:nonNumeric></span>
 &#9746; No &#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data
File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (&#167;232.405 of this chapter) during the preceding
12 months (or for such shorter period that the Registrant was required to submit and post such files).</span></p>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_90D_edei--EntityInteractiveDataCurrent_c20220101__20220331_zLRqVZcojPdj"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="dei:EntityInteractiveDataCurrent">Yes</ix:nonNumeric></span>
&#9746; No &#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">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 definition of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and
&#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act. (Check one):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Large
accelerated filer &#9744; <span id="xdx_90F_edei--EntityFilerCategory_c20220101__20220331_z5xokeJfWrUh"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" format="ixt-sec:entityfilercategoryen" name="dei:EntityFilerCategory">Accelerated Filer</ix:nonNumeric></span> &#9746; Non-accelerated Filer &#9744; Smaller reporting company <span id="xdx_905_edei--EntitySmallBusiness_c20220101__20220331_zSJbdO7YbdW2"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" format="ixt:booleantrue" name="dei:EntitySmallBusiness">&#9746;</ix:nonNumeric></span> Emerging growth company <span id="xdx_909_edei--EntityEmergingGrowthCompany_c20220101__20220331_z7VTnjjq6w54"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" format="ixt:booleanfalse" name="dei:EntityEmergingGrowthCompany">&#9744;</ix:nonNumeric></span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">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 standards provided pursuant to Section 13(a) of the Exchange Act &#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; text-align: justify; margin: 0pt 0pt 0pt 0">Indicate by check mark whether the registrant
is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes &#9744; <span id="xdx_905_edei--EntityShellCompany_c20220101__20220331_zB0EFD3f8vjk"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" format="ixt:booleanfalse" name="dei:EntityShellCompany">No</ix:nonNumeric></span> &#9746;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
the number of shares outstanding of each of the issuer&#8217;s classes of Common Stock, as of the close of the latest practical date.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center; width: 49%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Class
    </span></td>
    <td style="text-align: center; width: 2%">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center; width: 49%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding
    at May 4, 2022</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Common
    Stock, $.001 Par Value</span></td>
    <td style="text-align: center">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_904_edei--EntityCommonStockSharesOutstanding_iI_c20220504_zwZxFmPrZYAh"><ix:nonFraction name="dei:EntityCommonStockSharesOutstanding" contextRef="AsOf2022-05-04" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">13,256,097</ix:nonFraction></span>
    shares</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<!-- Field: Rule-Page --><div style="width: 100%"><div style="border-top: Black 1.5pt solid; font-size: 1pt; border-bottom: Black 4pt solid">&#160;</div></div><!-- Field: /Rule-Page -->

<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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    <div style="border-bottom: Black 1.5pt solid; margin-bottom: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%">&#160;</td></tr></table></div>
    <div style="break-before: page; margin-top: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%">&#160;</td></tr></table></div>
    <!-- Field: /Page -->

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>INDEX</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"></td>
    <td colspan="2" style="font: 10pt Times New Roman, Times, Serif"></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Page
    No.</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PART
    I</b></span></td>
    <td colspan="2" style="font: 10pt Times New Roman, Times, Serif"><a href="#a_0001"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>FINANCIAL INFORMATION</b></span></a></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center">&#160;</td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.65in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.6in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item
    1.</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><a href="#a_0002"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Financial Statements</span></a></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right; width: 0.5in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><a href="#a_0003"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Balance Sheets -March 31, 2022 and December 31, 2021</span></a></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><a href="#a_0004"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Statements of Operations -Three Months Ended March 31, 2022 and 2021</span></a></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">3</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><a href="#a_0005"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Statements of Comprehensive Loss -Three Months Ended March 31, 2022 and 2021</span></a></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">4</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><a href="#a_0006"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Statements of Stockholders&#8217; Equity -Three Months Ended March 31, 2022 and 2021</span></a></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><a href="#a_0007"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated Statements of Cash Flows -Three Months Ended March 31, 2022 and 2021</span></a></td>
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    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
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    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>


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    <div style="break-before: page; margin-top: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%">&#160;</td></tr></table></div>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0001"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PART
I - FINANCIAL INFORMATION</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0002"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
1. &#8211; Financial Statements</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0003"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Consolidated
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying notes are an integral part of these consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Consolidated
Balance Sheets, Continued</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
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  <tr id="xdx_409_eus-gaap--DeferredRevenueCurrent_i02I_maLCz0vo_zNoMz3Rf0pHl" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_400_eus-gaap--AccruedCappingClosurePostClosureAndEnvironmentalCosts_i02I_maLCz0vo_z6KduUCCvoXa" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr id="xdx_400_eus-gaap--LongTermDebtCurrent_i02I_maLCz0vo_z084KgLQaRph" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_401_eus-gaap--OperatingLeaseLiabilityCurrent_i02I_maLCz0vo_zR4cd2qUcxQc" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left">Current portion of operating lease liabilities</td><td>&#160;</td>
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  <tr id="xdx_404_eus-gaap--FinanceLeaseLiabilityCurrent_i02I_maLCz0vo_zuZ8fzuhaBtd" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_408_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_i02I_maLCz0vo_zTWd7YvMEod8" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left">Current liabilities related to discontinued operations</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><ix:nonFraction name="us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">802</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr id="xdx_40E_eus-gaap--LiabilitiesCurrent_i02TI_mtLCz0vo_maLzJRz_zNjBp6iuAO6i" style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40A_eus-gaap--AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_i01I_maLNz4xA_zsWdwLfVywHd" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_40B_eus-gaap--LongTermDebtNoncurrent_i01I_maLNz4xA_zaoxvGqghwOg" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Long-term debt, less current portion</td><td>&#160;</td>
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  <tr id="xdx_406_eus-gaap--OperatingLeaseLiabilityNoncurrent_i01I_maLNz4xA_zaaejmfCYjK5" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_40C_eus-gaap--FinanceLeaseLiabilityNoncurrent_i01I_maLNz4xA_z3o032ByES69" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Long-term finance lease liabilities, less current portion</td><td>&#160;</td>
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  <tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_i01I_maLNz4xA_zjqqmZJEStUh" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Long-term liabilities related to discontinued operations</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><ix:nonFraction name="us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">408</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr id="xdx_401_eus-gaap--LiabilitiesNoncurrent_i01TI_mtLNz4xA_maLzJRz_zYJz9uFQJej4" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_402_eus-gaap--Liabilities_i01TI_mtLzJRz_maLASEzhbr_z2KiyXra355d" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 30pt; text-align: left">Total liabilities</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:Liabilities" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">32,684</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:Liabilities" contextRef="AsOf2021-12-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">36,717</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--CommitmentsAndContingencies_i01I_maLASEzhbr_z9lxq8NWZ8m4" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Commitments and Contingencies (Note 9 )</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0186">&#8212;</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0187">&#8212;</span></span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Stockholders&#8217; Equity:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--PreferredStockValue_i02I_maSEIPAzDhK_zvHxpQFv5VE3" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Preferred Stock, $<span id="xdx_907_eus-gaap--PreferredStockParOrStatedValuePerShare_iI_pid_c20220331_zlsX5NIg7KRj" title="Preferred stock, par value"><span id="xdx_90E_eus-gaap--PreferredStockParOrStatedValuePerShare_iI_pid_c20211231_z57F0Gv5DJqf" title="Preferred stock, par value"><ix:nonFraction name="us-gaap:PreferredStockParOrStatedValuePerShare" contextRef="AsOf2022-03-31" decimals="INF" unitRef="USDPShares"><ix:nonFraction name="us-gaap:PreferredStockParOrStatedValuePerShare" contextRef="AsOf2021-12-31" decimals="INF" unitRef="USDPShares">.001</ix:nonFraction></ix:nonFraction></span></span> par value; <span id="xdx_908_eus-gaap--PreferredStockSharesAuthorized_iI_pid_c20220331_zdU5CiRsGGK" title="Preferred stock, shares authorized"><span id="xdx_908_eus-gaap--PreferredStockSharesAuthorized_iI_pid_c20211231_z9JAclOWLCMh" title="Preferred stock, shares authorized"><ix:nonFraction name="us-gaap:PreferredStockSharesAuthorized" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares"><ix:nonFraction name="us-gaap:PreferredStockSharesAuthorized" contextRef="AsOf2021-12-31" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">2,000,000</ix:nonFraction></ix:nonFraction></span></span> shares authorized, <span id="xdx_909_eus-gaap--PreferredStockSharesIssued_iI_pid_do_c20220331_zRMNOZSfkmki" title="Preferred stock, shares issued"><span id="xdx_904_eus-gaap--PreferredStockSharesOutstanding_iI_pid_do_c20220331_zKk4HyRrq3P9" title="Preferred stock, shares outstanding"><span id="xdx_900_eus-gaap--PreferredStockSharesIssued_iI_pid_do_c20211231_zCaC2yl3BBrc" title="Preferred stock, shares issued"><span id="xdx_900_eus-gaap--PreferredStockSharesOutstanding_iI_pid_do_c20211231_zZ3RnhLwLDLg" title="Preferred stock, shares outstanding"><ix:nonFraction name="us-gaap:PreferredStockSharesIssued" contextRef="AsOf2022-03-31" format="ixt-sec:numwordsen" decimals="INF" unitRef="Shares"><ix:nonFraction name="us-gaap:PreferredStockSharesOutstanding" contextRef="AsOf2022-03-31" format="ixt-sec:numwordsen" decimals="INF" unitRef="Shares"><ix:nonFraction name="us-gaap:PreferredStockSharesIssued" contextRef="AsOf2021-12-31" format="ixt-sec:numwordsen" decimals="INF" unitRef="Shares"><ix:nonFraction name="us-gaap:PreferredStockSharesOutstanding" contextRef="AsOf2021-12-31" format="ixt-sec:numwordsen" decimals="INF" unitRef="Shares">no</ix:nonFraction></ix:nonFraction></ix:nonFraction></ix:nonFraction></span></span></span></span> shares issued and outstanding</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0189">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0190">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40E_eus-gaap--CommonStockValue_i02I_maSEIPAzDhK_zgrv29fpHHnd" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_401_eus-gaap--LiabilitiesAndStockholdersEquity_i01TI_pn3n3_mtLASEzhbr_zj1KD9I2S1e7" style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt; padding-left: 30pt; text-align: left">Total liabilities and stockholders&#8217; equity</td><td style="padding-bottom: 2.5pt">&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b></b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying notes are an integral part of these consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0004"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Consolidated
Statements of Operations</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(Unaudited)</b></span></p>

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    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">Selling, general and administrative expenses</td><td>&#160;</td>
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    <td style="text-align: left">Research and development</td><td>&#160;</td>
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  <tr id="xdx_409_eus-gaap--NetIncomeLoss_iT_mtNILzbSK_za0jH8HMUSw6" style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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  <tr id="xdx_40E_eus-gaap--IncomeLossFromContinuingOperationsPerBasicShare_i01_pid_zcR6ObeaHRzc" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr id="xdx_40D_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_i01_pid_z2vxkYUmjMK3" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Discontinued operations</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="padding-left: 10pt; padding-bottom: 2.5pt">Diluted</td><td style="padding-bottom: 2.5pt">&#160;</td>
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  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying notes are an integral part of these condensed consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0005"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Consolidated
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(Unaudited)</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

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    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(<ix:nonFraction name="us-gaap:ComprehensiveIncomeNetOfTax" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,317</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt">&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying notes are an integral part of these condensed consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
ENVIRONMENTAL SERVICES, INC</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0006"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Consolidated
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(Unaudited)</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Amounts
in thousands, except for share amounts)</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<table cellpadding="0" cellspacing="0" id="xdx_300_114_pn3n3_znEY6oszvhaa" summary="xdx: Statement - Consolidated Statement of Stockholders&apos; Equity (Unaudited)" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="display: none; vertical-align: bottom">
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  <tr id="xdx_406_eus-gaap--ProfitLoss_i_pn3n3" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_407_eus-gaap--OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_zrfgit4fiRad" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left"><span style="font-size: 8pt">Foreign currency translation</span></td><td><span style="font-size: 8pt">&#160;</span></td>
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    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0365">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0366">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
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    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0369">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">26</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td></tr>
  <tr id="xdx_40B_eus-gaap--StockIssuedDuringPeriodValueIssuedForServices_z9v9WJizkBxj" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left"><span style="font-size: 8pt">Issuance of Common Stock for services</span></td><td><span style="font-size: 8pt">&#160;</span></td>
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    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0376">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0377">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
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  <tr id="xdx_409_eus-gaap--AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_znLq28SZJRb2" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">Stock-Based Compensation</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
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    <td style="border-bottom: Black 1.5pt solid; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0382">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" contextRef="From2022-01-012022-03-31_us-gaap_AdditionalPaidInCapitalMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">102</ix:nonFraction></span></td><td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0384">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0385">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0386">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0387">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 1.5pt"><span style="font-size: 8pt">&#160;</span></td>
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  <tr id="xdx_43F_c20220101__20220331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iE_zmHGsYUIvvW8" style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt; font-weight: bold"><span style="font-size: 8pt">Balance at March 31, 2022</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
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    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2022-03-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">13</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2022-03-31_us-gaap_AdditionalPaidInCapitalMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">114,532</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2022-03-31_us-gaap_TreasuryStockMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">88</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2022-03-31_us-gaap_AccumulatedOtherComprehensiveIncomeMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">2</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 8pt"> <span style="-sec-ix-hidden: xdx2ixbrl0394">&#8212;</span></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2022-03-31_us-gaap_RetainedEarningsMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">74,963</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">39,492</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: right"><span style="font-size: 8pt">&#160;</span></td><td style="font-size: 11pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td></tr>
  <tr id="xdx_432_c20210101__20210331_eus-gaap--StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_iS_zRoVLIBAToQ9" style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt; font-weight: bold"><span style="font-size: 8pt">Balance at December 31, 2020</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td id="xdx_98E_eus-gaap--SharesOutstanding_iS_pid_c20210101__20210331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z1cgbk3U4ZR3" title="Beginning balance, shares" style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:SharesOutstanding" contextRef="AsOf2020-12-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">12,161,539</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">12</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31_us-gaap_AdditionalPaidInCapitalMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">108,931</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31_us-gaap_TreasuryStockMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">88</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31_us-gaap_AccumulatedOtherComprehensiveIncomeMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">207</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31_us-gaap_NoncontrollingInterestMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,742</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31_us-gaap_RetainedEarningsMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">74,455</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">)</span></td><td style="padding-bottom: 2.5pt"><span style="font-size: 8pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"><span style="font-size: 8pt">$</span></td><td style="border-bottom: Black 2.5pt double; text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" contextRef="AsOf2020-12-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">32,451</ix:nonFraction></span></td><td style="padding-bottom: 2.5pt; text-align: left"><span style="font-size: 8pt">&#160;</span></td></tr>
  <tr id="xdx_401_eus-gaap--ProfitLoss_zIw1sHOfT2Rc" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left"><span style="font-size: 8pt">Net loss</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt">&#8212;</span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0410">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0411">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0412">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0413">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:ProfitLoss" contextRef="From2021-01-012021-03-31_us-gaap_NoncontrollingInterestMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">30</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">)</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:ProfitLoss" contextRef="From2021-01-012021-03-31_us-gaap_RetainedEarningsMember" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,123</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">)</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt">(<ix:nonFraction name="us-gaap:ProfitLoss" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,153</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">)</span></td></tr>
  <tr id="xdx_403_eus-gaap--OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_i_pn3n3" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left"><span style="font-size: 8pt">Foreign currency translation</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt">&#8212;</span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0418">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0419">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0420">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" contextRef="From2021-01-012021-03-31_us-gaap_AccumulatedOtherComprehensiveIncomeMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">20</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0422">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0423">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">20</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td></tr>
  <tr id="xdx_40B_eus-gaap--StockIssuedDuringPeriodValueIssuedForServices_zWYqnOHcNor5" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left"><span style="font-size: 8pt">Issuance of Common Stock for services</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_pid_c20210101__20210331__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zxhri5JKCPyj" title="Issuance of Common Stock for services, shares" style="text-align: right"><span style="font-size: 8pt"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesIssuedForServices" contextRef="From2021-01-012021-03-31_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">11,837</ix:nonFraction></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
    <td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td style="text-align: right"><span style="font-size: 8pt"><span style="-sec-ix-hidden: xdx2ixbrl0426">&#8212;</span></span></td><td style="text-align: left"><span style="font-size: 8pt">&#160;</span></td><td><span style="font-size: 8pt">&#160;</span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i></i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying notes are an integral part of these condensed consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0007"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Consolidated
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(Unaudited)</b></span></p>

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    <td style="padding-left: 20pt; text-align: left">Amortization of debt issuance costs</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:AmortizationOfFinancingCostsAndDiscounts" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">13</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="padding-left: 20pt; text-align: left">Deferred tax benefit</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:DeferredIncomeTaxExpenseBenefit" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">673</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0479">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_408_ecustom--ProvisionForRecoveryOfBadDebtReserves_i02_maNCPBUzPCa_zZ8hQkWgVUw5" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 20pt; text-align: left">Recovery of bad debt reserves</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="PESI:ProvisionForRecoveryOfBadDebtReserves" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">55</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
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  <tr id="xdx_401_eus-gaap--GainLossOnDispositionOfAssets_i02N_di_msNCPBUzPCa_zkPlMNNijfVk" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 20pt; text-align: left">Loss on disposal of plant, property, and equipment</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:GainLossOnDispositionOfAssets" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0485">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
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    <td style="padding-left: 20pt; text-align: left">Issuance of common stock for services</td><td>&#160;</td>
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    <td style="padding-left: 20pt; text-align: left">Stock-based compensation</td><td>&#160;</td>
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  <tr id="xdx_40E_eus-gaap--IncreaseDecreaseInOperatingCapitalAbstract_i02B_zGrE1NN4NCa6" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 20pt; text-align: left">Changes in operating assets and liabilities of continuing operations:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--IncreaseDecreaseInAccountsReceivable_i03N_di_msNCPBUzPCa_zoOs9s47pAd9" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 30pt; text-align: left">Accounts receivable</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:IncreaseDecreaseInAccountsReceivable" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">10,445</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr id="xdx_409_ecustom--IncreaseDecreaseInUnbilledReceivable_i03N_di_msNCPBUzPCa_z3gwVd1G0K34" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 30pt; text-align: left">Unbilled receivables</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="PESI:IncreaseDecreaseInUnbilledReceivable" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">3,720</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="PESI:IncreaseDecreaseInUnbilledReceivable" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">5,224</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_i03N_di_msNCPBUzPCa_zccsS5neEImh" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 30pt; text-align: left">Prepaid expenses, inventories and other assets</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,097</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">557</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_ecustom--IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_i03_maNCPBUzPCa_zvcKyaxicvb4" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 30pt; text-align: left; padding-bottom: 1.5pt">Accounts payable, accrued expenses and unearned revenue</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">(<ix:nonFraction name="PESI:IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">4,492</ix:nonFraction></td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">(<ix:nonFraction name="PESI:IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">1,270</ix:nonFraction></td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr>
  <tr id="xdx_409_eus-gaap--NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_i01T_maNCPBUzrkj_mtNCPBUzPCa_zHWI8VnbHMQ9" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 40pt; text-align: left">Cash provided by (used in) continuing operations</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">148</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">6,455</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr id="xdx_407_eus-gaap--CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_i01_maNCPBUzrkj_z5eFZPbhauGj" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 40pt; text-align: left; padding-bottom: 1.5pt">Cash used in discontinued operations</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">(<ix:nonFraction name="us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">142</ix:nonFraction></td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">(<ix:nonFraction name="us-gaap:CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">149</ix:nonFraction></td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr>
  <tr id="xdx_402_eus-gaap--NetCashProvidedByUsedInOperatingActivities_i01T_mtNCPBUzrkj_maCCERCz0jm_zflOVtoWZMj4" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Cash provided by (used in) operating activities</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:NetCashProvidedByUsedInOperatingActivities" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">6</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInOperatingActivities" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">6,604</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--NetCashProvidedByUsedInInvestingActivitiesAbstract_iB_zWmqF3KJJvka" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Cash flows from investing activities:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40D_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_i01N_di_msNCPBUzRhr_zfvvaUj2mmul" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left">Purchases of property and equipment</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">345</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">361</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr id="xdx_40E_eus-gaap--ProceedsFromSaleOfPropertyPlantAndEquipment_i01_maNCPBUzRhr_zvearqjo7tj2" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Proceeds from sale of plant, property, and equipment</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">24</ix:nonFraction></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">1</ix:nonFraction></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--NetCashProvidedByUsedInInvestingActivities_i01T_mtNCPBUzRhr_maCCERCz0jm_zO7yj7jO5lb8" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 20pt; text-align: left">Cash used in investing activities of continuing operations</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInInvestingActivities" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">321</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:NetCashProvidedByUsedInInvestingActivities" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" sign="-" unitRef="USD">360</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_406_eus-gaap--NetCashProvidedByUsedInFinancingActivitiesAbstract_iB_zSA9WcbS6Zl6" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Cash flows from financing activities:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_405_eus-gaap--RepaymentsOfLinesOfCredit_i01N_di_msNCPBUzzrt_zlQlBSJh7tF9" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Repayments of revolving credit borrowings</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:RepaymentsOfLinesOfCredit" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">17,494</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:RepaymentsOfLinesOfCredit" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">14,780</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr id="xdx_401_eus-gaap--ProceedsFromLinesOfCredit_i01_maNCPBUzzrt_zHJNdkQQioZg" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left">Borrowing on revolving credit</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromLinesOfCredit" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">17,494</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:ProceedsFromLinesOfCredit" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">14,780</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--FinanceLeasePrincipalPayments_i01N_di_msNCPBUzzrt_zr4dDEZu6THj" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Principal repayments of finance lease liabilities</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:FinanceLeasePrincipalPayments" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">58</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">(<ix:nonFraction name="us-gaap:FinanceLeasePrincipalPayments" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">114</ix:nonFraction></td><td style="text-align: left">)</td></tr>
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    <td style="padding-left: 10pt; text-align: left">Principal repayments of long term debt</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
accompanying notes are an integral part of these condensed consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center; text-indent: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PERMA-FIX
ENVIRONMENTAL SERVICES, INC.</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span id="a_0008"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Notes
to Consolidated Financial Statements</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>March
31, 2022</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(Unaudited)</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Reference
is made herein to the notes to consolidated financial statements included in our Annual Report on Form 10-K for the year ended December
31, 2021.</span></p>

<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock"><p id="xdx_808_eus-gaap--BusinessDescriptionAndBasisOfPresentationTextBlock_zEBf17lk8lpe" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>1.
    </b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_820_zt3VR8oqMUg2">Basis
    of Presentation</span></span></b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
consolidated financial statements included herein have been prepared by the Company (which may be referred to as we, us or our), without
an audit, pursuant to the rules and regulations of the Securities and Exchange Commission (&#8220;the Commission&#8221;). Certain information
and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in
the United States of America (&#8220;U.S. GAAP&#8221;) have been condensed or omitted pursuant to such rules and regulations, although
the Company believes the disclosures which are made are adequate to make the information presented not misleading. Further, the consolidated
financial statements reflect, in the opinion of management, all adjustments (which include only normal recurring adjustments) necessary
to present fairly the financial position and results of operations as of and for the periods indicated. The results of operations for
the three months ended March 31, 2022 are not necessarily indicative of results to be expected for the fiscal year ending December 31,
2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company suggests that these consolidated financial statements be read in conjunction with the consolidated financial statements and the
notes thereto included in the Company&#8217;s Annual Report on Form 10-K for the year ended December 31, 2021.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
consolidated financial statements include the accounts of our wholly-owned subsidiaries and the account of a variable interest entity
(&#8220;VIE&#8221;), Perma-Fix ERRG for which we are the primary beneficiary (See &#8220;Note 13 - VIE&#8221; for a discussion of this
VIE). The consolidated financial statements for 2021 also included the accounts of the Company&#8217;s majority-owned Polish subsidiary,
Perma-Fix Medical S.A (&#8220;PFM Poland&#8221;) and PFM Poland&#8217;s wholly-owned subsidiary, Perma-Fix Medical Corporation (&#8220;PFMC&#8221;),
which comprised of the Company&#8217;s Medical Segment. As previously discussed, the Company made the strategic decision to cease all
research and development (&#8220;R&amp;D&#8221;) activities under the Medical Segment and sold <span id="xdx_907_ecustom--SalesOfInterestPercentage_pid_dp_uPure_c20210101__20211231__srt--ConsolidatedEntitiesAxis__custom--PFMPolandMember_zslS59CNMYz1" title="Sale of interest in subsidiaries"><ix:nonFraction name="PESI:SalesOfInterestPercentage" contextRef="From2021-01-012021-12-31_custom_PFMPolandMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">100</ix:nonFraction></span>% of its interest in PFM Poland in
December 2021. As a condition precent to the sale of PFM Poland, the Company acquired PFMC after its conversion to a Delaware limited
liability company. As a result of the sale of PFM Poland, the Company deconsolidated PFM Poland from its consolidated financial statements
in December 2021. The Company&#8217;s Medical Segment had not generated any revenue.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Information
for the Medical Segment is presented for the quarter ending March 31, 2021. The Medical Segment was disposed of as of December 31, 2021
and is not relevant for the quarter ending March 31, 2022. Prior period segment information is not required to be restated for the disposal
of the segment.</span></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:SignificantAccountingPoliciesTextBlock"><p id="xdx_805_eus-gaap--SignificantAccountingPoliciesTextBlock_zK218IEAgkWi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>2.
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_82B_z0SiOHBpkG1f">Summary
    of Significant Accounting Policies</span></span></b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
accounting policies are as set forth in the notes to the December 31, 2021 consolidated financial statements referred to above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
May 2021, the Financial Accounting Standards Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;) No. 2021-04,
&#8220;Earnings Per Share (Topic 206), Debt-Modifications and Extinguishments (Subtopic 470-50), Compensation-Stock Compensation (Topic
718), and Derivatives and Hedging-Contracts in Entity&#8217;s Own Equity (Subtopic 815-40): Issuer&#8217;s Accounting for Certain Modifications
or Exchanges of Freestanding Equity-Classified Written Call Options (a consensus of the FASB Emerging Issues Task Force).&#8221; ASU
2021-04 addresses issuer&#8217;s accounting for certain modifications or exchanges of freestanding equity-classified written call options.
This ASU is effective for all entities, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal
years. Early adoption is permitted. The adoption of this ASU by the Company effective January 1, 2022 did not have a material impact
on its financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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June 2016, the FASB issued ASU No. 2016-13, &#8220;Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments,&#8221;
and various subsequent amendments to the initial guidance (collectively, &#8220;Topic 326&#8221;). Topic 326 introduces an approach,
based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale
debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most
financial assets measured at amortized cost and certain other instruments, including trade and other receivables and loans. Entities
are required to apply the standard&#8217;s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the
first reporting period in which the guidance is adopted. In November 2019, FASB issued ASU 2019-10, &#8220;Financial Instruments &#8211;
Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842),&#8221; which defers the effective date of ASU
2016-13 for public companies that are considered smaller reporting companies (&#8220;SRC&#8221;) as defined by the Commission to fiscal
years beginning after December 15, 2022, including interim periods within those fiscal years. These ASUs are effective January 1, 2023
for the Company as an SRC. Under new guidance issued by the Commission in March 2020, the Company continues to qualify as a smaller reporting
company but became an accelerated filer starting with its 2021 Form 10-K and all subsequent filings. The Company is currently evaluating
the impact of these ASU on its consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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March 2020, the FASB issued ASU 2020-04, &#8220;Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform
on Financial Reporting,&#8221; which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships
and other transactions affected by the discontinuation of the London Interbank Offered Rate (&#8220;LIBOR&#8221;) or by another reference
rate expected to be discontinued because of reference rate reform. The guidance was effective beginning March 12, 2020 and can be applied
prospectively through December 31, 2022. In January 2021, the FASB issued ASU No. 2021-01, &#8220;Reference Rate Reform (Topic 848):
Scope,&#8221; which clarified the scope and application of the original guidance. The Company plans to adopt both ASUs when LIBOR is
discontinued. The Company is currently evaluating the impact of the new ASUs on its condensed consolidated financial statements. As of
the date of this report, the Company has determined that only its obligations under the credit facility as described in &#8220;Note 8
&#8211; Long Term Debt would be impacted by these ASUs. The Company&#8217;s obligations under
its credit facility permit for payment of annual rate of interests on its obligations using prime rate or LIBOR.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
August 2020, the FASB issued ASU No. 2020-06, &#8220;Debt &#8211; Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives
and Hedging &#8211; Contracts in Entity&#8217;s Own Equity.&#8221; ASU 2020-06 simplifies the accounting for convertible instruments
by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts
in an entity&#8217;s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06
is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as an
SRC. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within
those fiscal years. The Company is currently evaluating the impact of this ASU on its consolidated financial statements and disclosures.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Disaggregation
of Revenue</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
general, the Company&#8217;s business segmentation is aligned according to the nature and economic characteristics of our services and
provides meaningful disaggregation of each business segment&#8217;s results of operations. The nature of the Company&#8217;s performance
obligations within our Treatment and Services Segments results in the recognition of our revenue primarily over time. The following tables
present further disaggregation of our revenues by different categories for our Services and Treatment Segments:</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
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</ix:nonNumeric><p id="xdx_8A8_zeGmJ0vV3emd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

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Liabilities</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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Company&#8217;s contract liabilities consist of deferred revenues which represent advance payment from customers in advance of the completion
of our performance obligation. The following table represents changes in our contract liabilities balances:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span><span id="xdx_8B6_zZsYp0Benrya" style="display: none">Schedule Of Contract   Liabilities</span></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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</ix:nonNumeric><p id="xdx_8AB_zAntKcPfO4wf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
decrease was primarily due to revenue recognized in connection with a Services Segment contract. The decrease was also attributed to
more processing of Treatment Segment&#8217;s backlog due to continued delays in waste receipts from certain customers from the impact
of COVID-19.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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untreated waste that was in the Company&#8217;s control as of the beginning of each respective year. Revenue recognized in each period
related to performance obligations satisfied within the respective period.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Remaining
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company applies the practical expedient in paragraph 606-10-50-14 and does not disclose information about remaining performance obligations
that have original expected durations of one year or less.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Within
our Services Segment, there are service contracts which provide that the Company has a right to consideration from a customer in an amount
that corresponds directly with the value to the customer of our performance completed to date. For those contracts, the Company has utilized
the practical expedient in ASC 606-10-55-18, which allows the Company to recognize revenue in the amount for which we have the right
to invoice; accordingly, the Company does not disclose the value of remaining performance obligations for those contracts.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s contracts and subcontracts relating to activities at governmental sites generally allow for termination for convenience
at any time at the government&#8217;s option without payment of a substantial penalty. The Company does not disclose remaining performance
obligations on these contracts.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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the inception of an arrangement, the Company determines if an arrangement is, or contains, a lease based on facts and circumstances present
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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office and warehouse spaces used to conduct our business. Finance leases consist primarily of processing and transport equipment used
by our facilities&#8217; operations.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B0_z9rAHak5pZ05" style="display: none">Schedule Of Components Of Lease Cost</span></span></span></p>

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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Interest on lease liability</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left; padding-bottom: 2.5pt">Total lease cost</td><td style="padding-bottom: 2.5pt">&#160;</td>
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</ix:nonNumeric><p id="xdx_8A7_zJ2Vazyiajeh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="PESI:ScheduleOfWeightedAverageLeaseTableTextBlock"><p id="xdx_896_ecustom--ScheduleOfWeightedAverageLeaseTableTextBlock_z9Y5QjFrqDP" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B0_zfV5GUIU0Q0j" style="display: none">Schedule Of Weighted Average Lease</span></span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%">
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Finance Leases</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Weighted average discount rate</td><td>&#160;</td>
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  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2021 were:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%">
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Finance Leases</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: left">Weighted average remaining lease terms (years)</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 16%; text-align: right"><span id="xdx_90A_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zx0pgyEun3F3" title="Operating leases, weighted average remaining lease terms (years)"><ix:nonNumeric contextRef="AsOf2021-03-31" format="ixt-sec:duryear" name="us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1">7.8</ix:nonNumeric></span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 16%; text-align: right"><span id="xdx_908_eus-gaap--FinanceLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zZmrNfygjUWd" title="Finance leases, weighted average remaining lease terms (years)"><ix:nonNumeric contextRef="AsOf2021-03-31" format="ixt-sec:duryear" name="us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1">3.4</ix:nonNumeric></span></td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Weighted average discount rate</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90D_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zA9EJiJWBnc9" title="Finance leases, weighted average discount rate"><ix:nonFraction name="us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent" contextRef="AsOf2021-03-31" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">6.8</ix:nonFraction></span></td><td style="text-align: left">%</td></tr>
  </table>

</ix:nonNumeric><p id="xdx_8A3_z3C9cYcSGMF1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


<ix:exclude><!-- Field: Page; Sequence: 12; Value: 1 -->
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="PESI:OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock"><p id="xdx_898_ecustom--OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_znafRXLUOFpk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2022 to the operating and finance
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<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span><span id="xdx_8B5_zsrRKozKOYkl" style="display: none">Schedule Of Operating And Finance Lease Liability Maturity</span></span>&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font-size: 11pt; text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Operating Leases</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Finance Leases</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: right">2022 (Remaining)</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_znzuHA5YDdU8" title="Finance Leases 2022" style="width: 16%; text-align: right"><ix:nonFraction name="us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">315</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2023</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zbijyDZ2RL58" title="Finance Leases 2023" style="text-align: right"><ix:nonFraction name="us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">327</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">2024</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zIjOyYXMjBH9" title="Finance Leases 2024" style="text-align: right"><ix:nonFraction name="us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">323</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2025</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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</ix:nonNumeric><p id="xdx_8A8_z5hSjJQ73l52" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span><span id="xdx_8BB_zU3mxFMNXfbg" style="display: none">Schedule Of Supplemental Cash Flow And Other Information Related To Leases</span></span>&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="display: none; vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2021</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Cash paid for amounts included in the measurement of lease liabilities:</td><td>&#160;</td>
    <td colspan="2">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2">&#160;</td><td>&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--OperatingLeasePayments_pn3n3_z0sAAebByHV6" style="vertical-align: bottom; background-color: White">
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  <tr id="xdx_400_eus-gaap--FinanceLeaseInterestExpense_pn3n3_zh6w5up7BYql" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr id="xdx_40D_eus-gaap--FinanceLeasePrincipalPayments_pn3n3_zIufe2dC5xpg" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Financing cash flow from finance leases</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">ROU assets obtained in exchange for lease obligations for:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_406_eus-gaap--RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_pn3n3_zR8g5yrgpAag" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="padding-left: 10pt; text-align: left">Operating liabilities</td><td>&#160;</td>
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</ix:nonNumeric><p id="xdx_8AB_zjXXEHXN626b" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:IntangibleAssetsDisclosureTextBlock"><p id="xdx_804_eus-gaap--IntangibleAssetsDisclosureTextBlock_zMZjGvimMrr2" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>5.</b></span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span><span id="xdx_8B0_z0fLjiDVsYOd" style="display: none">Schedule Of Definite Lived Intangible Assets</span></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
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    <td colspan="2" style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B6_ziA8jFzaPSgl" style="display: none">Schedule Of Finite Lived Intangible Assets, Future Amortization Expense</span></span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 40%; margin-right: auto">
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    <td>&#160;</td><td>&#160;</td>
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    <td style="border-bottom: Black 1.5pt solid; font-weight: normal; font-style: normal">Year</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="text-align: left">2026</td><td>&#160;</td>
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</ix:nonNumeric><p id="xdx_8A1_zevDpGjeSsMd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 1.75in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amortization
expenses relating to the definite-lived intangible assets as discussed above were $<span id="xdx_909_eus-gaap--AmortizationOfIntangibleAssets_pp0p0_c20220101__20220331_zjeiYzQYFfh4" title="Amortization of intangible asset"><ix:nonFraction name="us-gaap:AmortizationOfIntangibleAssets" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">56,000</ix:nonFraction></span> and $<span id="xdx_90B_eus-gaap--AmortizationOfIntangibleAssets_pp0p0_c20210101__20210331_zUJ8Vfhk4exk" title="Amortization of intangible asset"><ix:nonFraction name="us-gaap:AmortizationOfIntangibleAssets" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">50,000</ix:nonFraction></span> for the three months ended March
31, 2022 and 2021, respectively.</span></p>
<!-- Field: Split-Segment; Name: 001 -->
</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"><p id="xdx_80E_eus-gaap--DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_zkV2e7LeVpub" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>6.
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_82A_zToFqCtu8ow3">Capital
    Stock, Stock Plans, Warrants and Stock Based Compensation</span></span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company has certain stock option plans under which it may award incentive stock options (&#8220;ISOs&#8221;) and/or non-qualified stock
options (&#8220;NQSOs&#8221;) to employees, officers, outside directors, and outside consultants. No stock options were granted in the
first quarter of 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company granted a NQSO to Robert Ferguson on July 27, 2017 from the Company&#8217;s 2017 Stock Option Plan (&#8220;2017 Plan&#8221;)
for the purchase of up to <span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20170726__20170727__us-gaap--PlanNameAxis__custom--TwoThousandAndSeventeenStockOptionPlanMember__srt--TitleOfIndividualAxis__custom--ConsultantMember_z6aBKsJZtOY6" title="Number of stock option shares granted"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" contextRef="From2017-07-262017-07-27_custom_TwoThousandAndSeventeenStockOptionPlanMember_custom_ConsultantMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">100,000</ix:nonFraction></span> shares of the Company&#8217;s Common Stock (&#8220;Ferguson Stock Option&#8221;) in connection with
his work as a consultant to the Company&#8217;s Test Bed Initiative (&#8220;TBI&#8221;) at our Perma-Fix Northwest Richland, Inc. (&#8220;PFNWR&#8221;)
facility at an exercise price of $<span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20170726__20170727__us-gaap--PlanNameAxis__custom--TwoThousandAndSeventeenStockOptionPlanMember__srt--TitleOfIndividualAxis__custom--ConsultantMember_zcaa1YwAEls2" title="Stock options, exercise price"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" contextRef="From2017-07-262017-07-27_custom_TwoThousandAndSeventeenStockOptionPlanMember_custom_ConsultantMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">3.65</ix:nonFraction></span> per share, which was the fair market value of the Company&#8217;s Common Stock on the date of
grant. The term of the Ferguson Stock Option is seven years from the grant date. The vesting of the Ferguson Stock Option is subject
to the achievement of three separate milestones by certain dates. The first milestone was met and the shares under the first milestone
were issued to Robert Ferguson in May 2018. The Company had previously entered into amendments whereby the vesting dates for the second
and third milestones for the purchase of up to <span id="xdx_90C_ecustom--OptionsToPurchaseSharesOfCommonStock_c20170726__20170727__us-gaap--AwardTypeAxis__custom--FergusonStockOptionMember__srt--StatementScenarioAxis__custom--SecondMilestoneMember_zkIQh9TQBHq1" title="Options to purchase shares"><ix:nonFraction name="PESI:OptionsToPurchaseSharesOfCommonStock" contextRef="From2017-07-262017-07-27_custom_FergusonStockOptionMember_custom_SecondMilestoneMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">30,000</ix:nonFraction></span> and <span id="xdx_90B_ecustom--OptionsToPurchaseSharesOfCommonStock_c20170726__20170727__us-gaap--AwardTypeAxis__custom--FergusonStockOptionMember__srt--StatementScenarioAxis__custom--ThirdMilestoneMember_zOdhCpDIfC96" title="Options to purchase shares"><ix:nonFraction name="PESI:OptionsToPurchaseSharesOfCommonStock" contextRef="From2017-07-262017-07-27_custom_FergusonStockOptionMember_custom_ThirdMilestoneMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">60,000</ix:nonFraction></span> shares of the Company&#8217;s Common Stock were extended to December
31, 2021 and December 31, 2022, respectively. On January 20, 2022, the Company&#8217;s Compensation and Stock Option Committee (&#8220;Compensation
Committee&#8221;) and the Board of Directors (&#8220;Board&#8221;) further amended the vesting dates of the second and third milestones
to December 31, 2022 and December 31, 2023, respectively. This amendment was approved by the Compensation Committee and the Board to
take effect December 31, 2021. The Company has not recognized compensation costs (fair value of approximately $<span id="xdx_90A_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pp0p0_c20220331__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_z7UauCYaLGjb" title="Unrecognized compensation cost related to unvested options consultant"><ix:nonFraction name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" contextRef="AsOf2022-03-31_custom_RobertFergusonMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">289,000</ix:nonFraction></span> at March 31, 2022)
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

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following table summarizes stock-based compensation recognized for the three months ended March 31, 2022 and 2021 for our employee
and director stock options.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B9_zf0Op0JaM8Va">Schedule of Share-based Compensation, Allocation of Recognized Period Costs</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
  <tr style="display: none; vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
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    <td id="xdx_497_20220101__20220331_zciVlLv55sl9" style="text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2022</span></td>
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    <td>&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">Stock Options</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center">March 31,</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="width: 60%; text-align: left">Employee Stock Options</td><td style="width: 2%">&#160;</td>
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</ix:nonNumeric><p id="xdx_8AE_zfCaMfmB2Abg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2022, the Company has approximately $<span id="xdx_907_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pp0p0_c20220331__srt--TitleOfIndividualAxis__custom--EmployeeAndDirectorsMember_zlS3zwkkX3J8" title="Unrecognized compensation cost related to unvested options consultant"><ix:nonFraction name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" contextRef="AsOf2022-03-31_custom_EmployeeAndDirectorsMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">1,287,000</ix:nonFraction></span> of total unrecognized compensation costs related to unvested options for employee
and directors. The weighted average period over which the unrecognized compensation costs are expected to be recognized is approximately
<span id="xdx_909_ecustom--WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_dtY_c20220101__20220331__srt--TitleOfIndividualAxis__custom--EmployeeAndDirectorsMember_zJlNcCUJM0Pf" title="Weighted average term for unrecognized and unvested option to be recognized"><ix:nonNumeric contextRef="From2022-01-012022-03-31_custom_EmployeeAndDirectorsMember" format="ixt-sec:duryear" name="PESI:WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized">4.1</ix:nonNumeric></span> years.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


<ix:exclude><!-- Field: Page; Sequence: 14; Value: 1 -->
    <div style="border-bottom: Black 1.5pt solid; margin-bottom: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->12<!-- Field: /Sequence --></td></tr></table></div>
    <div style="break-before: page; margin-top: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%">&#160;</td></tr></table></div>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify">&#160;</p>

<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:ScheduleOfStockOptionsRollForwardTableTextBlock"><p id="xdx_899_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_zKMftzGNWgzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
summary of the Company&#8217;s total Stock Option Plans as of March 31, 2022 and March 31, 2021, and changes during the periods then
ended, are presented below. The Company&#8217;s Plans consist of the 2010 Stock Option Plan, the 2017 Plan and the 2003 Outside Directors
Stock Plan (&#8220;2003 Plan&#8221;):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B3_zGexHXxMdvdc">Schedule of Stock Options Roll Forward</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average</p>
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                                               <p style="margin-top: 0; margin-bottom: 0">Price</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
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                                               <p style="margin-top: 0; margin-bottom: 0">(years)</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 36%">Options outstanding January 1, 2022</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td style="width: 12%; font-size: 11pt; text-align: right">&#160;</td><td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td style="width: 2%; font-size: 11pt">&#160;</td>
    <td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zZ60FR03C1F3" style="width: 12%; font-size: 11pt; text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0904">&#8212;</span></span></td><td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Granted</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z85qphEsxjLe" title="Shares Options Granted" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0906">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z4rJ1nyeI8cg" title="Weighted Average Exercise Price Options Granted" style="text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0908">&#8212;</span></span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Exercised</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_988_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zCUT3hQvTB64" title="Shares Options Exercised" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0910">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zMLmIAoSNLl9" title="Weighted Average Exercise Price Options Exercised" style="text-align: right"> <span style="-sec-ix-hidden: xdx2ixbrl0912">&#8212;</span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_za7QRWDr63R6" title="Aggregate Intrinsic Value Options Exercised" style="text-align: right"> <span style="-sec-ix-hidden: xdx2ixbrl0914">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zrddeIfFX8d1" title="Shares Options Forfeited/expired" style="border-bottom: Black 1.5pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0916">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zmXYGPBN9Sk9" title="Weighted Average Exercise Price Options Forfeited/expired" style="text-align: right"> <span style="-sec-ix-hidden: xdx2ixbrl0918">&#8212;</span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt"><span id="xdx_F47_zzZqb6Xy70v5" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options outstanding end of period <sup>(1)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"></td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zniXrCH4gYP" title="Shares Options Outstanding Ending" style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" contextRef="AsOf2022-03-31_us-gaap_StockOptionMember" id="Fact000920" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">1,019,400</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zP3LnAyLNWsj" title="Weighted Average Exercise Price Options Outstanding Ending" style="padding-bottom: 2.5pt; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" contextRef="AsOf2022-03-31_us-gaap_StockOptionMember" id="Fact000922" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">4.91</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zG1KnhiNbsDe" title="Weighted Average Remaining Contractual Term (years) Outstanding"><ix:nonNumeric contextRef="From2022-01-012022-03-31_us-gaap_StockOptionMember" format="ixt-sec:duryear" id="Fact000924" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2">3.8</ix:nonNumeric></span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zzYqUU3jlLwb" title="Aggregate Intrinsic Value Options Outstanding" style="padding-bottom: 2.5pt; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" contextRef="AsOf2022-03-31_us-gaap_StockOptionMember" id="Fact000926" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">1,150,167</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options exercisable at March 31, 2022<sup>(1)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"></td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zX6Qq4BvQii8" title="Shares Options Exercisable" style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" contextRef="AsOf2022-03-31_us-gaap_StockOptionMember" id="Fact000928" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">455,900</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zAUBqlIBm0la" title="Weighted Average Exercise Price Options Exercisable" style="padding-bottom: 2.5pt; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" contextRef="AsOf2022-03-31_us-gaap_StockOptionMember" id="Fact000930" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">3.92</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zf3RRtALAk1i" title="Weighted Average Remaining Contractual Term (years) Exercisable"><ix:nonNumeric contextRef="From2022-01-012022-03-31_us-gaap_StockOptionMember" format="ixt-sec:duryear" id="Fact000932" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1">2.5</ix:nonNumeric></span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zM17wIG7Kgsc" title="Aggregate Intrinsic Value Options Exercisable" style="padding-bottom: 2.5pt; text-align: right"><ix:nonFraction name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" contextRef="AsOf2022-03-31_us-gaap_StockOptionMember" id="Fact000934" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">779,362</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares</td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">Exercise</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">Price</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average Remaining Contractual Term</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">(years)</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate Intrinsic</span></p>
                                                                                <p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Value <sup>(3)</sup></span></p></td><td style="text-align: center">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 36%">Options outstanding January 1, 2021</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zWGv26fURg1f" title="Shares Options Outstanding Beginning" style="width: 12%; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">658,400</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z2FC3V42NRc4" title="Weighted Average Exercise Price Options Outstanding Beginning" style="width: 12%; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" contextRef="AsOf2020-12-31_us-gaap_StockOptionMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">3.87</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 12%; text-align: right">&#160;</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zRBWgJCetet9" style="width: 12%; text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0939">&#8212;</span></span></td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Granted</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ziOX9Kw3sUtj" title="Shares Options Granted" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0941">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ztg22QbtJend" title="Weighted Average Exercise Price Options Granted" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0943">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Exercised</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zZbo50d8WBIe" title="Shares Options Exercised" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0945">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zLdtoRQa0E99" title="Weighted Average Exercise Price Options Exercised" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0947">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_zPn71otZIo2i" title="Aggregate Intrinsic Value Options Exercised" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0949">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Forfeited/expired</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zr6wHFY4Vf21" title="Shares Options Forfeited/expired" style="border-bottom: Black 1.5pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0951">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zh8lr243qXrj" title="Weighted Average Exercise Price Options Forfeited/expired" style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl0953">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options outstanding end of period <sup>(2)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zPq6nI7IYz9c" title="Weighted Average Exercise Price Options Exercisable" style="padding-bottom: 2.5pt; text-align: right"><ix:nonFraction name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" contextRef="AsOf2021-03-31_us-gaap_StockOptionMember" id="Fact000965" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">4.08</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_904_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zKIrooMQsWzd" title="Weighted Average Remaining Contractual Term (years) Exercisable"><ix:nonNumeric contextRef="From2021-01-012021-03-31_us-gaap_StockOptionMember" format="ixt-sec:duryear" id="Fact000967" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1">3.4</ix:nonNumeric></span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_98F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zMjYIuwYyA3f" title="Aggregate Intrinsic Value Options Exercisable" style="padding-bottom: 2.5pt; text-align: right"><ix:nonFraction name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" contextRef="AsOf2021-03-31_us-gaap_StockOptionMember" id="Fact000969" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">1,274,287</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F08_z9QYmHIkyEoa">(1)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F14_zLu3Zn4pXAJ9" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote000970" xml:lang="en-US">Options with exercise prices ranging from $<span id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zHT1zo76Muk9" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" contextRef="From2022-01-012022-03-31_custom_StockOptionOutstandingMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.79</ix:nonFraction></span> to $<span id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zU4ULxF2fla8" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" contextRef="From2022-01-012022-03-31_custom_StockOptionOutstandingMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">7.50</ix:nonFraction></span></ix:footnote></span></td></tr>
</table>


<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F04_zUaGm5wINbog">(2)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F1B_zWiupfNXaw8d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote000973" xml:lang="en-US">Options with exercise prices ranging from $<span id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zeAzSUEIt1l8" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" contextRef="From2022-01-012022-03-31_custom_StockOptionExercisableMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">2.79</ix:nonFraction></span> to $<span id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zZx5cRh1uPv6" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" contextRef="From2022-01-012022-03-31_custom_StockOptionExercisableMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">7.29</ix:nonFraction></span></ix:footnote></span></td></tr>
</table>


<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F08_zKi1SVHksv6">(3)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F14_zZcG4PzUoJda" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote000976" xml:lang="en-US">The intrinsic value of a stock option is the amount by which
the market value of the underlying stock exceeds the exercise price of the option.</ix:footnote></span></td></tr>
</table>


</ix:nonNumeric><p id="xdx_8A6_zkh3HXG0nIqj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the three months ended March 31, 2022, the Company issued a total of <span id="xdx_90B_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_c20220101__20220331__us-gaap--PlanNameAxis__custom--TwoThousandThreeOutsideDirectorsStockOptionPlanMember__us-gaap--StatementClassOfStockAxis__us-gaap--CommonStockMember_zCiCKQFQ7fg5"><ix:nonFraction name="us-gaap:StockIssuedDuringPeriodSharesIssuedForServices" contextRef="From2022-01-012022-03-31_custom_TwoThousandThreeOutsideDirectorsStockOptionPlanMember_us-gaap_CommonStockMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">19,520</ix:nonFraction></span> shares of its Common Stock under the 2003 Plan to its outside
directors as compensation for serving on our Board. The Company recorded approximately $<span id="xdx_904_eus-gaap--AllocatedShareBasedCompensationExpense_c20220101__20220331__us-gaap--PlanNameAxis__custom--TwoThousandTwentyManagementIncentivePlanMember_zlvSOghMO611" title="Allocated share-based compensation expense"><ix:nonFraction name="us-gaap:AllocatedShareBasedCompensationExpense" contextRef="From2022-01-012022-03-31_custom_TwoThousandTwentyManagementIncentivePlanMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">120,000</ix:nonFraction></span> in compensation expenses (included in
selling, general and administration (&#8220;SG&amp;A&#8221;) expenses) in connection with the issuance of shares of its Common Stock
to outside directors.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with a $<span id="xdx_902_eus-gaap--LoansPayable_iI_pp0p0_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zFx0JShNSoX2" title="Loans payable"><ix:nonFraction name="us-gaap:LoansPayable" contextRef="AsOf2019-04-02_custom_RobertFergusonMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">2,500,000</ix:nonFraction></span> loan that the Company entered into with Mr. Robert Ferguson (the &#8220;Ferguson Loan&#8221;) on April 1,
2019, the Company issued a warrant to Mr. Ferguson for the purchase of up to <span id="xdx_900_eus-gaap--ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_iI_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zGqlLhAypxTf" title="Warrant to purchase"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" contextRef="AsOf2019-04-02_custom_RobertFergusonMember" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">60,000</ix:nonFraction></span> shares of our Common Stock at an exercise price of
$<span id="xdx_909_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zy67Z6hXydyj" title="Warrants exercise price"><ix:nonFraction name="us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" contextRef="AsOf2019-04-02_custom_RobertFergusonMember" format="ixt:numdotdecimal" decimals="INF" unitRef="USDPShares">3.51</ix:nonFraction></span> per share. <span id="xdx_90C_ecustom--WarrantExercisableDescription_c20190330__20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zqfD5INx1Fk4" title="Warrant exercisable, description"><ix:nonNumeric contextRef="From2019-03-302019-04-02_custom_RobertFergusonMember" name="PESI:WarrantExercisableDescription">The warrant expires on April 1, 2024 and remains outstanding at March 31, 2022. The Ferguson Loan was paid-in-full in
December 2020.</ix:nonNumeric></span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


<ix:exclude><!-- Field: Page; Sequence: 15; Value: 1 -->
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</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:EarningsPerShareTextBlock"><p id="xdx_805_eus-gaap--EarningsPerShareTextBlock_zHtDIJXxWORc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>7.
</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span><span id="xdx_82D_zbA3cD1m6ZN4">Loss
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"><p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_z3a0tq9Via4a" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basic
loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted
loss per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding
common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive loss earnings per
shares. The following table reconciles the loss and average share amounts used to compute both basic and diluted loss per share:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B2_zUu3VX1Zftui">Schedule
of Earning Per Share</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="display: none; vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: center">&#160;</td>
    <td id="xdx_494_20220101__20220331_z9XW2FPy9Ct" style="text-align: center"><span style="display: none; font-family: Times New Roman, Times, Serif">2022</span></td>
    <td colspan="4" id="xdx_499_20210101__20210331_zNGQEmDd0se1" style="text-align: center"><span style="display: none; font-family: Times New Roman, Times, Serif">2021</span></td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center">(Unaudited)</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center">March 31,</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">(Amounts in Thousands, Except for Per Share Amounts)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2021</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr id="xdx_408_eus-gaap--IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_iB_zA2f4RgJfP59" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Net loss attributable to Perma-Fix Environmental Services, Inc., common stockholders:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="padding-left: 10pt; width: 60%; text-align: left">Loss from continuing operations, net of taxes</td><td style="width: 2%">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-decoration: underline"><span style="text-decoration: underline"></span></td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasicAbstract_iB_zFNq734jZ7Ge" style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_405_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasic_pid_zxpt3LHpbEjc" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Basic weighted average shares outstanding</td><td>&#160;</td>
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  <tr id="xdx_40A_eus-gaap--IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_pid_zQnYZ75Kpmbl" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Add: dilutive effect of stock options</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1023">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1024">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_400_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_zf6twMdGVhQ" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Add: dilutive effect of warrants</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1026">&#8212;</span></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1027">&#8212;</span></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_40D_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_pid_zGH3C5nisuX2" style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt">Diluted weighted average shares outstanding</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">&#160;</td><td style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">13,234</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Potential shares excluded from above weighted average share calculations due to their anti-dilutive
    effect include:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pid_z3L0kgKZrer2" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Stock options</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">405</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><ix:nonFraction name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="INF" unitRef="Shares">30</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_404_ecustom--AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_pid_zMi75wAy4qTd" style="vertical-align: bottom; background-color: White">
    <td>Warrant</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1035">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1036">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  </table>

</ix:nonNumeric><p id="xdx_8A5_zBY534dDccO2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:LongTermDebtTextBlock"><p id="xdx_800_eus-gaap--LongTermDebtTextBlock_zNLGzpxTckfh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>8.</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_828_zEIqHQNgHQ26">Long
    Term Debt</span></span></b></span></td>
    </tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:ScheduleOfDebtInstrumentsTextBlock"><p id="xdx_89A_eus-gaap--ScheduleOfDebtInstrumentsTextBlock_zfiFJSy0V146" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Long-term
debt consists of the following:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B7_zj5sDZULO0x4">Schedule of Long Term Debt</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">(Amounts in Thousands)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">March 31, 2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">December 31, 2021</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Revolving Credit</b> facility
    dated May 8, 2020, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due
    on <span id="xdx_909_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_z5J55u5m5Nqb" title="Debt due date" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonNumeric contextRef="From2020-05-072020-05-08_custom_RevolvingCreditMember" format="ixt:datemonthdayyearen" name="us-gaap:DebtInstrumentMaturityDate">May 15, 2024</ix:nonNumeric></span>. Effective interest rate for first quarter of 2022 was <span id="xdx_90D_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220331__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_zJXS2qyQ8Zp3" title="Effective interest rate" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:DebtInstrumentInterestRateEffectivePercentage" contextRef="AsOf2022-03-31_custom_RevolvingCreditMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0</ix:nonFraction></span>%. <sup>(1) </sup></span></td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zIL66X3BRTy7" title="Total debt" style="text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl1046">&#8212;</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--LongTermDebt_iI_pn3n3_c20211231__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zdXkub4NdCZ2" title="Total debt" style="text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl1048">&#8212;</span></span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b id="xdx_F43_ztplLFkxIjYj">Term Loan</b> dated May
    8, 2020, payable in equal monthly installments of principal, balance due on <span id="xdx_90B_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--TermLoanMember_z7Okh9VXQeF2" title="Debt due date" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonNumeric contextRef="From2020-05-072020-05-08_custom_TermLoanMember" format="ixt:datemonthdayyearen" name="us-gaap:DebtInstrumentMaturityDate">May 15, 2024</ix:nonNumeric></span>. Effective interest rate for the first quarter
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-style: normal; width: 60%; font-weight: normal; text-align: left"><b>Notes Payable</b> to 2023 and 2025, annual interest
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Total debt</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt; text-align: left">Long-term debt</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20220331_z2KKoFWSB3Xf" style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:LongTermDebtNoncurrent" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">491</ix:nonFraction></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98F_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20211231_zZqBUVq33Qv4" title="Long-term debt" style="border-bottom: Black 2.5pt double; text-align: right"><ix:nonFraction name="us-gaap:LongTermDebtNoncurrent" contextRef="AsOf2021-12-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">600</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -31.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td id="xdx_F02_zesljS6BxGE9" style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup>(1)</sup></span></td><td style="width: 5pt"></td><td style="text-align: justify"><span id="xdx_F1C_zF2e3Et7L9F6" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote001072" xml:lang="en-US">Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</ix:footnote></span></td>
</tr>
<tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F09_zVqwt9WDf1z3">(2)</sup></span></td><td style="width: 5pt"></td><td style="text-align: justify"><span id="xdx_F10_zzrb1I02XJtd" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote001073" xml:lang="en-US">Net of debt issuance
costs of ($<span id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:DeferredFinanceCostsNet" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">120,000</ix:nonFraction></span>) and ($<span id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA"><ix:nonFraction name="us-gaap:DeferredFinanceCostsNet" contextRef="AsOf2021-12-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">112,000</ix:nonFraction></span>) at March 31, 2022 and December 31, 2021, respectively.</ix:footnote></span></td>
</tr></table>

</ix:nonNumeric><p id="xdx_8AC_zVcKSjdwM32g" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


<ix:exclude><!-- Field: Page; Sequence: 16; Value: 1 -->
    <div style="border-bottom: Black 1.5pt solid; margin-bottom: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->14<!-- Field: /Sequence --></td></tr></table></div>
    <div style="break-before: page; margin-top: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%">&#160;</td></tr></table></div>
    <!-- Field: /Page --></ix:exclude>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Revolving
Credit and Term Loan Agreement</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company entered into a Second Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated May 8, 2020 (&#8220;Loan
Agreement&#8221;), with PNC National Association (&#8220;PNC&#8221;), acting as agent and lender. The Loan Agreement provides the Company
with the following credit facility with a maturity date of <span id="xdx_903_eus-gaap--DebtInstrumentMaturityDate_dd_c20200506__20200508__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember_zD9mbATferLl" title="Debt instrument maturity date"><ix:nonNumeric contextRef="From2020-05-062020-05-08_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember" format="ixt:datemonthdayyearen" name="us-gaap:DebtInstrumentMaturityDate">March 15, 2024</ix:nonNumeric></span>: (a) up to $<span id="xdx_90A_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_c20200508__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember_pp0p0" title="Line of credit facility, maximum borrowing capacity"><ix:nonFraction name="us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity" contextRef="AsOf2020-05-08_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">18,000,000</ix:nonFraction></span> revolving credit (&#8220;revolving credit&#8221;)
and (b) a term loan (&#8220;term loan&#8221;) of approximately $<span id="xdx_900_eus-gaap--LongTermDebt_c20200508__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_pp0p0" title="Total debt"><ix:nonFraction name="us-gaap:LongTermDebt" contextRef="AsOf2020-05-08_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_TermLoanMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">1,742,000</ix:nonFraction></span>, requiring monthly installments of $<span id="xdx_90C_eus-gaap--DebtInstrumentPeriodicPayment_c20200506__20200508__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_pp0p0" title="Debt instrument periodic payment"><ix:nonFraction name="us-gaap:DebtInstrumentPeriodicPayment" contextRef="From2020-05-062020-05-08_custom_RevisedLoanAgreementMember_custom_PNCBankMember_custom_TermLoanMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">35,547</ix:nonFraction></span>. The maximum that
the Company can borrow under the revolving credit is based on a percentage of eligible receivables (as defined) at any one time reduced
by outstanding standby letters of credit and borrowing reductions that our lender may impose from time to time. The Loan Agreement, as
amended, also provides a capital expenditure line of up to $<span id="xdx_904_eus-gaap--LineOfCreditFacilityCurrentBorrowingCapacity_c20210504_pp0p0" title="Debt instrument, borrowing capacity, amount"><ix:nonFraction name="us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity" contextRef="AsOf2021-05-04" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">1,000,000</ix:nonFraction></span> with advances on the line, subject to certain limitations, permitted
for up to twelve months starting May 4, 2021 (the &#8220;Borrowing Period&#8221;). Only interest is payable on advances during the Borrowing
Period. At the end of the Borrowing Period, the total amount advanced under the line will amortize equally based on a five-year amortization
schedule with principal payment due monthly plus interest. At the maturity date of the Loan Agreement, as amended, any unpaid principal
balance plus interest, if any, will become due. No advance on the capital line has been made as of March 31, 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
March 29, 2022, the Company entered into an amendment to its Loan Agreement with its lender which provided, among other things, the following:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="width: 0.25in">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">waived
    the Company&#8217;s failure to meet the minimum quarterly fixed charge coverage ratio (&#8220;FCCR&#8221;) requirement for the fourth
    quarter of 2021;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">removes
    the quarterly FCCR testing requirement for the first quarter of 2022;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">reinstates
    the quarterly FCCR testing requirement starting for the second quarter of 2022 and revises the methodology to be used in calculating
    the FCCR for the quarters ending June 30, 2022, September 30, 2022, and December 31, 2022 (with no change to the minimum 1.15:1 ratio
    requirement for each quarter);</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_908_eus-gaap--LineOfCreditFacilityBorrowingCapacityDescription_c20220101__20220331_zyvtAMMw9rEg" title="Line of credit facility, borrowing capacity, description"><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" name="us-gaap:LineOfCreditFacilityBorrowingCapacityDescription">requires
    maintenance of a minimum of $3,000,000 in borrowing availability under the revolving credit until the minimum FCCR requirement for
    the quarter ended June 30, 2022 has been met and certified to the lender; and</ix:nonNumeric></span></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">revises
    the annual rate used to calculate the Facility Fee (as defined in the Loan Agreement) on the revolving credit, with addition of the
    capital expenditure line, from <span id="xdx_902_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329__srt--RangeAxis__srt--MinimumMember_zrpHNtv2XoEg" title="Percentage of unused line fees"><ix:nonFraction name="us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" contextRef="From2022-03-272022-03-29_srt_MinimumMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0.375</ix:nonFraction></span>% to <span id="xdx_908_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329__srt--RangeAxis__srt--MaximumMember_z46SMOa2ee24" title="Percentage of unused line fees"><ix:nonFraction name="us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" contextRef="From2022-03-272022-03-29_srt_MaximumMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0.500</ix:nonFraction></span>%. Upon meeting the minimum FCCR requirement of 1.15:1 on a twelve months trailing
    basis, the Facility Fee rate of <span id="xdx_902_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329_zCRjNLGKYC9k" title="Percentage of unused line fees"><ix:nonFraction name="us-gaap:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" contextRef="From2022-03-272022-03-29" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0.375</ix:nonFraction></span>% will be reinstated.</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the amendment, we paid PNC a fee of $<span id="xdx_909_eus-gaap--DebtInstrumentFeeAmount_iI_c20220329__srt--TitleOfIndividualAxis__custom--LenderMember_zNQOK9iV5iBk"><ix:nonFraction name="us-gaap:DebtInstrumentFeeAmount" contextRef="AsOf2022-03-29_custom_LenderMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">15,000</ix:nonFraction></span> which is being amortized over the remaining term of the Loan Agreement, as
amended, as interest expense-financing fees.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the Loan Agreement, as amended, payment of annual rate of interest due on the revolving credit is at prime (<span id="xdx_905_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--VariableRateAxis__us-gaap--PrimeRateMember_zSCaCKavRQ8b" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_custom_LoanAgreementMember_us-gaap_RevolvingCreditFacilityMember_us-gaap_PrimeRateMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">3.50</ix:nonFraction></span>% at March 31, 2022)
plus <span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zFZb9ugQNds1" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_custom_LoanAgreementMember_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">2</ix:nonFraction></span>% or LIBOR plus <span id="xdx_90A_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_ziJsUke3RNpg" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_custom_LoanAgreementMember_us-gaap_RevolvingCreditFacilityMember_us-gaap_LondonInterbankOfferedRateLIBORMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">3.00</ix:nonFraction></span>% and the term loan and the capital expenditure line at prime plus <span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--DebtInstrumentAxis__custom--CapitalExpenditureMember__us-gaap--VariableRateAxis__us-gaap--PrimeRateMember_zlLTxCmIhdX8" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_custom_LoanAgreementMember_custom_CapitalExpenditureMember_us-gaap_PrimeRateMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">2.50</ix:nonFraction></span>% or LIBOR plus <span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--DebtInstrumentAxis__custom--CapitalExpenditureMember__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zaWN3Dr34mAb" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_custom_LoanAgreementMember_custom_CapitalExpenditureMember_us-gaap_LondonInterbankOfferedRateLIBORMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">3.50</ix:nonFraction></span>%. Under the LIBOR
option of interest payment, a LIBOR floor of <span id="xdx_908_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zunAaYBYob9d" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_us-gaap_LondonInterbankOfferedRateLIBORMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0.75</ix:nonFraction></span>% applies in the event that LIBOR falls below <span id="xdx_908_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zpqKp6eHZFF8" title="Percentage of basis spread on variable rate"><ix:nonFraction name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" contextRef="From2022-01-012022-03-31_us-gaap_LondonInterbankOfferedRateLIBORMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">0.75</ix:nonFraction></span>% at any point in time.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may terminate its Loan Agreement, as amended, upon 90 days&#8217; prior written notice upon payment in full of our obligations
under the Loan Agreement. The Company has agreed to pay PNC 0.5% of the total financing if it pays off its obligations after May 7, 2021
but prior to or on May 7, 2022. No early termination fee will apply if the Company pays off its obligations under the Loan Agreement
after May 7, 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2022, the borrowing availability under the Company&#8217;s revolving credit was approximately $<span id="xdx_903_eus-gaap--LineOfCreditFacilityRemainingBorrowingCapacity_iI_pp0p0_c20220331__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zdIepKdrqFdk" title="Line of credit facility, remaining borrowing capacity"><ix:nonFraction name="us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity" contextRef="AsOf2022-03-31_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">4,544,000</ix:nonFraction></span> based on our eligible
receivables and includes a reduction in borrowing availability of approximately $<span id="xdx_90A_eus-gaap--LettersOfCreditOutstandingAmount_iI_pp0p0_c20220331__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zr4OiKS4NhOh" title="Letters of credit outstanding, amount"><ix:nonFraction name="us-gaap:LettersOfCreditOutstandingAmount" contextRef="AsOf2022-03-31_us-gaap_RevolvingCreditFacilityMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">3,020,000</ix:nonFraction></span> from outstanding standby letters of credit.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s credit facility under its Loan Agreement, as amended, with PNC contains certain financial covenants, along with customary
representations and warranties. A breach of any of these financial covenants, unless waived by PNC, could result in a default under our
credit facility allowing our lender to immediately require the repayment of all outstanding debt under our credit facility and terminate
all commitments to extend further credit. The Company was not required to perform testing of the FCCR requirement in the first
quarter of 2022 pursuant to the March 29, 2022 amendment as discussed above, otherwise, it met all of its other financial covenant
requirements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:CommitmentsAndContingenciesDisclosureTextBlock"><p id="xdx_806_eus-gaap--CommitmentsAndContingenciesDisclosureTextBlock_zXlOxaOdnIh1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>9.
    </b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_821_zjmpFFcuUTq8">Commitments
    and Contingencies</span></span></b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Hazardous
Waste</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with our waste management services, the Company processes both hazardous and non-hazardous waste, which we transport to our
own, or other, facilities for destruction or disposal. As a result of disposing of hazardous substances, in the event any cleanup is
required at the disposal site, the Company could be a potentially responsible party for the costs of the cleanup notwithstanding any
absence of fault on our part.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Legal
Matters</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the normal course of conducting our business, we are involved in various litigation. We are not a party to any litigation or governmental
proceeding which our management believes could result in any judgments or fines against us that could would have a material adverse effect
on our financial position, liquidity or results of future operations.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Tetra
Tech EC, Inc. (&#8220;Tetra Tech&#8221;)</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
July 2020, Tetra Tech EC, Inc. (&#8220;Tetra Tech&#8221;) filed a complaint in the United States District Court for the Northern District
of California (the &#8220;Court&#8221;) against CH2M Hill, Inc. (&#8220;CH2M&#8221;) and four subcontractors of CH2M, including the Company
(&#8220;Defendants&#8221;). The complaint alleges various claims, including a claim for negligence, negligent misrepresentation, equitable
indemnification and related business claims against all defendants related to alleged damages suffered by Tetra Tech in respect of certain
draft reports prepared by defendants at the request of the U.S. Navy as part of an investigation and review of certain whistleblower
complaints about Tetra Tech&#8217;s environmental restoration at the Hunter&#8217;s Point Naval Shipyard in San Francisco.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">CH2M
was hired by the Navy in 2016 to review Tetra Tech&#8217;s work. CH2M subcontracted with environmental consulting and cleanup firms Battelle
Memorial Institute, Cabrera Services, Inc., SC&amp;A, Inc. and the Company to assist with the review, according to the complaint.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
insurance carrier is providing a defense on our behalf in connection with this lawsuit, subject to a $100,000 self-insured retention
and the terms and limitations contained in the insurance policy.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 7, 2021, Defendants&#8217; motion to dismiss the complaint in its entirety was granted without prejudice, with leave to amend.
Tetra Tech subsequently filed a First Amended Complaint (&#8220;FAC&#8221;) and Defendants filed a motion to dismiss Tetra Tech&#8217;s
FAC (the &#8220;Motion&#8221;). Tetra Tech filed an opposition to Defendant&#8217;s motion to dismiss Tetra Tech&#8217;s FAC. Defendants
subsequently filed a joint reply to Tetra Tech&#8217;s motion in opposition. On January 27, 2022, the Motion was granted in part and
denied in part by the Court. Tetra Tech&#8217;s claims for: (1) Negligence; (2) Equitable Indemnification/Contribution; and (3) Unfair
Business Practices were dismissed. Tetra Tech was given leave to re-assert the Unfair Business Practices claim but chose not to do so,
which means that claim is now also dismissed. Tetra Tech&#8217;s claims that survived the Motion are: (1) Intentional Interference with
Contractual Relations; and (2) Inducing a Breach of Contract. The Company continues to believe it does not have any liability to Tetra
Tech.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Perma-Fix
Canada, Inc. (&#8220;PF Canada&#8221;)</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the fourth quarter of 2021, PF Canada received a Notice of Termination (&#8220;NOT&#8221;) from Canadian Nuclear Laboratories, LTD. (&#8220;CNL&#8221;)
on a Task Order Agreement (&#8220;TOA&#8221;) that PF Canada entered into with CNL in May 2019 for remediation work within Ontario, Canada
(&#8220;Agreement&#8221;). The NOT was received after work under the TOA was substantially completed and work under the TOA has since
been completed. CNL may terminate the TOA at any time for convenience. As of March 31, 2022, PF Canada has approximately $<span id="xdx_900_ecustom--UnpaidReceivablesAndUnbilledCosts_c20220101__20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zYWwBa8KOLi7"><ix:nonFraction name="PESI:UnpaidReceivablesAndUnbilledCosts" contextRef="From2022-01-012022-03-31_custom_CanadianNuclearLaboratoriesLTDMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">2,722,000</ix:nonFraction></span> in
unpaid receivables and unbilled costs due from CNL as a result of work performed under the TOA. Additionally, CNL has approximately $<span id="xdx_900_eus-gaap--AccountsReceivableNetCurrent_iI_c20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zRypKegFXm39"><ix:nonFraction name="us-gaap:AccountsReceivableNetCurrent" contextRef="AsOf2022-03-31_custom_CanadianNuclearLaboratoriesLTDMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">1,150,000</ix:nonFraction></span>
in contractual holdback under the TOA that is payable to PF Canada. CNL also established a bond securing approximately $<span id="xdx_907_ecustom--BondSecuringAmount_uCAD_c20220101__20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zcAC16bhbADl"><ix:nonFraction name="PESI:BondSecuringAmount" contextRef="From2022-01-012022-03-31_custom_CanadianNuclearLaboratoriesLTDMember" format="ixt:numdotdecimal" decimals="0" unitRef="CAD">1,900,000</ix:nonFraction></span> (CAD)
to cover certain issue raised in connection with the TOA. Under the TOA, CNL may be entitled to set off certain costs and expenses incurred
by CNL in connection with the termination of the TOA, including the bond as discussed above, against amounts owed to PF Canada for work
performed by PF Canada or its subcontractors. PF Canada continues to be in discussions with CNL to finalize the amounts due to PF Canada
under the TOA and continues to believes these amounts are due and payable.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Insurance</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company has a <span id="xdx_90C_ecustom--PeriodOfFiniteRiskInsurancePolicy_dtY_c20030601__20030630__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zlK95s5q78ef"><ix:nonNumeric contextRef="From2003-06-012003-06-30_custom_AmericanInternationalGroupIncMember" format="ixt-sec:duryear" name="PESI:PeriodOfFiniteRiskInsurancePolicy">25</ix:nonNumeric></span>-year finite risk insurance policy entered into in June 2003 (&#8220;2003 Closure Policy&#8221;) with AIG Specialty Insurance
Company (&#8220;AIG&#8221;), which provides financial assurance to the applicable states for our permitted facilities in the event of
unforeseen closure. The 2003 Closure Policy, as amended, provides for a maximum allowable coverage of $<span id="xdx_908_ecustom--MaximumAllowableCoverageOfInsurancePolicy_iI_pp0p0_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zvVVLZTleqWe"><ix:nonFraction name="PESI:MaximumAllowableCoverageOfInsurancePolicy" contextRef="AsOf2022-03-31_custom_AmericanInternationalGroupIncMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">28,177,000</ix:nonFraction></span> which includes available
capacity to allow for annual inflation and other performance and surety bond requirements. Total coverage under the 2003 Closure Policy,
as amended, was $<span id="xdx_90D_ecustom--CoverageAmountUnderPolicy_iI_pp0p0_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zm2NxGXKfHka"><ix:nonFraction name="PESI:CoverageAmountUnderPolicy" contextRef="AsOf2022-03-31_custom_AmericanInternationalGroupIncMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">21,047,000</ix:nonFraction></span> at March 31, 2022. At March 31, 2022 and December 31, 2021, finite risk sinking funds contributed by the
Company related to the 2003 Closure Policy which is included in other long term assets on the accompanying Consolidated Balance Sheets
totaled $<span id="xdx_90F_eus-gaap--RestrictedCashNoncurrent_iI_pid_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zDL2MPtbum8g"><ix:nonFraction name="us-gaap:RestrictedCashNoncurrent" contextRef="AsOf2022-03-31_custom_AmericanInternationalGroupIncMember_custom_ThousandandThreeClosurePolicyMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">11,482,000</ix:nonFraction></span> and $<span id="xdx_90C_eus-gaap--RestrictedCashNoncurrent_iI_c20211231__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zt8SDxLju5fg"><ix:nonFraction name="us-gaap:RestrictedCashNoncurrent" contextRef="AsOf2021-12-31_custom_AmericanInternationalGroupIncMember_custom_ThousandandThreeClosurePolicyMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">11,471,000</ix:nonFraction></span>, respectively, which included interest earned of $<span id="xdx_902_eus-gaap--InterestIncomeOther_pp0p0_c20220101__20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zfG3FMnvDks"><ix:nonFraction name="us-gaap:InterestIncomeOther" contextRef="From2022-01-012022-03-31_custom_AmericanInternationalGroupIncMember_custom_ThousandandThreeClosurePolicyMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">2,011,000</ix:nonFraction></span> and $<span id="xdx_90D_eus-gaap--InterestIncomeOther_pp0p0_c20210101__20211231__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zRVeS3JhcMja"><ix:nonFraction name="us-gaap:InterestIncomeOther" contextRef="From2021-01-012021-12-31_custom_AmericanInternationalGroupIncMember_custom_ThousandandThreeClosurePolicyMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">2,000,000</ix:nonFraction></span> on the finite risk sinking
funds as of March 31, 2022 and December 31, 2021, respectively. Interest income for the three months ended March 31, 2022 and 2021 was
approximately $<span id="xdx_902_eus-gaap--InterestIncomeOther_pp0p0_c20220101__20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zSQ7LiHi6uq6"><ix:nonFraction name="us-gaap:InterestIncomeOther" contextRef="From2022-01-012022-03-31_custom_AmericanInternationalGroupIncMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">11,000</ix:nonFraction></span> and $<span id="xdx_90E_eus-gaap--InterestIncomeOther_pp0p0_c20210101__20210331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zVzb1v6hadrk"><ix:nonFraction name="us-gaap:InterestIncomeOther" contextRef="From2021-01-012021-03-31_custom_AmericanInternationalGroupIncMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">18,000</ix:nonFraction></span>, respectively. If we so elect, AIG is obligated to pay us an amount equal to <span id="xdx_90B_ecustom--InsurersObligationToEntityOnTerminationOfContract_iI_pid_dp_uPure_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zbzx5Kz9Xfm6"><ix:nonFraction name="PESI:InsurersObligationToEntityOnTerminationOfContract" contextRef="AsOf2022-03-31_custom_AmericanInternationalGroupIncMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">100</ix:nonFraction></span>% of the finite risk
sinking fund account balance in return for complete release of liability from both us and any applicable regulatory agency using this
policy as an instrument to comply with financial assurance requirements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Letter
of Credits and Bonding Requirements</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, the Company is required to post standby letters of credit and various bonds to support contractual obligations to customers
and other obligations, including facility closures. At March 31, 2022, the total amount of standby letters of credit outstanding was
approximately $<span id="xdx_902_eus-gaap--LettersOfCreditOutstandingAmount_iI_pp0p0_c20220331_zuq0PF9HcEB4"><ix:nonFraction name="us-gaap:LettersOfCreditOutstandingAmount" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">3,020,000</ix:nonFraction></span> and the total amount of bonds outstanding was approximately $<span id="xdx_902_ecustom--BondOutstanding_iI_pp0p0_c20220331_zpu369i4xZL7"><ix:nonFraction name="PESI:BondOutstanding" contextRef="AsOf2022-03-31" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">51,295,000</ix:nonFraction></span>.</span></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock"><p id="xdx_805_eus-gaap--DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_znaZpZAyBdl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>10.</b></span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s discontinued operations consist of all our subsidiaries included in our previous Industrial Segment which encompasses
subsidiaries divested in 2011 and prior and three previously closed locations.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s discontinued operations had net losses of $<span id="xdx_903_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_iN_pn3p0_di_c20220101__20220331_zioVgPMwygR6"><ix:nonFraction name="us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="0" sign="-" unitRef="USD">94,000</ix:nonFraction></span> (net of tax benefit of $<span id="xdx_905_eus-gaap--DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal_c20220101__20220331_zH9vz0c8a0Nd" title="Net of tax benefit"><ix:nonFraction name="us-gaap:DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">63,000</ix:nonFraction></span>) and $<span id="xdx_90F_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_iN_pn3p0_di_c20210101__20210331_znQjJomTGpM7"><ix:nonFraction name="us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="0" sign="-" unitRef="USD">115,000</ix:nonFraction></span> (net of taxes of $<span id="xdx_908_eus-gaap--DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal_c20210101__20210331_zRiZzAioNmb7"><ix:nonFraction name="us-gaap:DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="0" unitRef="USD">0</ix:nonFraction></span>) for
the three months ended March 31, 2022 and 2021. The losses were primarily due to costs incurred in the administration and continued monitoring
of our discontinued operations. The Company&#8217;s discontinued operations had no revenues for each of the periods noted above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


<ix:exclude><!-- Field: Page; Sequence: 19; Value: 1 -->
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<ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock"><p id="xdx_892_eus-gaap--ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_zN8raQR1UXkg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table presents the major class of assets of discontinued operations as of March 31, 2022 and December 31, 2021. No assets and
liabilities were held for sale at each of the periods noted.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto">
  <tr style="vertical-align: bottom">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="padding-bottom: 1.5pt; text-align: left">Environmental liabilities</td><td style="padding-bottom: 1.5pt">&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.75in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F05_zgSmrax4Gsb3">(1)</sup></span></td><td style="width: 5pt"></td><td style="text-align: justify"><span id="xdx_F1E_zN7wpQQcq0a7" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote001190" xml:lang="en-US">net of accumulated
depreciation of $<span id="xdx_901_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20220101__20220331_ztFgjoKcIlPd" title="Depreciation"><span id="xdx_904_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20210101__20211231_zRS5vyoy0Jlh" class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIERpc3Bvc2FsIEdyb3VwcywgSW5jbHVkaW5nIERpc2NvbnRpbnVlZCBPcGVyYXRpb24gQmFsYW5jZSBTaGVldCAoRGV0YWlscykgKFBhcmVudGhldGljYWwpAA__"><ix:nonFraction name="us-gaap:DepreciationAndAmortizationDiscontinuedOperations" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD"><ix:nonFraction name="us-gaap:DepreciationAndAmortizationDiscontinuedOperations" contextRef="From2021-01-012021-12-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">10,000</ix:nonFraction></ix:nonFraction></span></span> for each period presented.</ix:footnote></span></td>
</tr></table>

</ix:nonNumeric><p id="xdx_8A0_zTSC5s9ZYcyf" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">&#160;</p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:SegmentReportingDisclosureTextBlock"><p id="xdx_807_eus-gaap--SegmentReportingDisclosureTextBlock_zbBLFmQUHWB1" style="font: 10pt Times New Roman, Times, Serif; display: none; margin-top: 0pt; margin-bottom: 0pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
<tr style="vertical-align: top; text-align: left">
  <td style="width: 0.25in"><b>11.</b></td>
  <td><b><span id="xdx_828_zZrDM3WsEd7a">Operating Segments</span></b></td></tr>
</table>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
accordance with ASC 280, &#8220;Segment Reporting&#8221;, the Company defines an operating segment as a business activity: (1) from which
we may earn revenue and incur expenses; (2) whose operating results are regularly reviewed by the chief operating decision maker (&#8220;CODM&#8221;)
to make decisions about resources to be allocated to the segment and assess its performance; and (3) for which discrete financial information
is available.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
reporting segments are defined as below:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">TREATMENT
SEGMENT, which includes:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">nuclear,
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    waste treatment, processing and disposal services primarily through four uniquely licensed and permitted treatment and storage facilities;
    and</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">R&amp;D
    activities to identify, develop and implement innovative waste processing techniques for problematic waste streams.</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">SERVICES
SEGMENT, which includes:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Technical
    services, which include:</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.65in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9675;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">professional
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    engineering;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif">&#9675;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">integrated
    Occupational Safety and Health services including industrial hygiene (&#8220;IH&#8221;) assessments; hazardous materials surveys,
    e.g., exposure monitoring; lead and asbestos management/abatement oversight; indoor air quality evaluations; health risk and exposure
    assessments; health &amp; safety plan/program development, compliance auditing and training services; and Occupational Safety and
    Health Administration (&#8220;OSHA&#8221;) citation assistance;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif">&#9675;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">global
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    decommissioning field, technical, and management personnel and services to commercial and government customers; and</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif">&#9675;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">on-site
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Nuclear
    services, which include:</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.65in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9675;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">technology-based
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    logistics, transportation, processing and disposal;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif">&#9675;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">remediation
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    project investigation; radiological engineering; partial and total plant D&amp;D; facility decontamination, dismantling, demolition,
    and planning; site restoration; logistics; transportation; and emergency response; and</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">-</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
    company owned equipment calibration and maintenance laboratory that services, maintains, calibrates, and sources (i.e., rental) health
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
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any revenue and was involved in the Company&#8217;s medical isotope production technology.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
reporting segments exclude our corporate headquarters and our discontinued operations (see &#8220;Note 10 &#8211; Discontinued Operations&#8221;)
which do not generate revenues.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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table below presents certain financial information of our operating segments for the three months ended March 31, 2022 and 2021 (in thousands):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Segment
Reporting for the Quarter Ended March 31, 2022</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B6_zQEgUyWPAuuh">Schedule
of Segment Reporting Information</span></span></p>

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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Segment income (loss)</td><td>&#160;</td>
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    <td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td>&#160;</td>
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  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Segment
Reporting for the Quarter Ended March 31, 2021</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Treatment</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Medical</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Segments Total</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" title="Revenue from external customers" style="width: 6%; text-align: right"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" contextRef="From2021-01-012021-03-31_custom_ServicesMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">15,638</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" title="Revenue from external customers" style="width: 8%; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1328">&#8212;</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331_pn3n3" title="Revenue from external customers" style="width: 6%; text-align: right"><ix:nonFraction name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">23,133</ix:nonFraction></td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--InterestIncomeOther_c20210101__20210331_pn3n3" title="Interest income" style="text-align: right"><ix:nonFraction name="us-gaap:InterestIncomeOther" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">18</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Interest expense</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zJZJvkdYbRdb" title="Interest expense" style="text-align: right">(<ix:nonFraction name="us-gaap:InterestExpense" contextRef="From2021-01-012021-03-31_custom_ServicesMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">8</ix:nonFraction></td><td style="text-align: left">)</td><td style="font-weight: bold">&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZE6bNWBiOra" title="Interest expense" style="text-align: right">(<ix:nonFraction name="us-gaap:InterestExpense" contextRef="From2021-01-012021-03-31_custom_SegmentsTotalMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">27</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331_zTs7COPu1SD9" title="Interest expense" style="text-align: right">(<ix:nonFraction name="us-gaap:InterestExpense" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">67</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Interest expense-financing fees</td><td style="font-weight: bold">&#160;</td>
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    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_987_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zSJOFdVAign9" title="Interest expense-financing fees" style="font-weight: bold; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1394">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zd0zgJxWe83f" title="Interest expense-financing fees" style="font-weight: bold; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1396">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZygsAKheOil" title="Interest expense-financing fees" style="font-weight: bold; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1398">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zEQMoxDgIuuf" title="Interest expense-financing fees" style="text-align: right">(<ix:nonFraction name="us-gaap:FinancingInterestExpense" contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">8</ix:nonFraction></td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331_z4BKl3rt79H4" title="Interest expense-financing fees" style="text-align: right">(<ix:nonFraction name="us-gaap:FinancingInterestExpense" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">8</ix:nonFraction></td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Depreciation and amortization</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" title="Depreciation and amortization" style="text-align: right"><ix:nonFraction name="us-gaap:DepreciationAndAmortization" contextRef="From2021-01-012021-03-31_custom_ServicesMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">85</ix:nonFraction></td><td style="text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" title="Depreciation and amortization" style="text-align: right"><ix:nonFraction name="us-gaap:DepreciationAndAmortization" contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">5</ix:nonFraction></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--DepreciationAndAmortization_c20210101__20210331_pn3n3" title="Depreciation and amortization" style="text-align: right"><ix:nonFraction name="us-gaap:DepreciationAndAmortization" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">400</ix:nonFraction></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-indent: -27pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F0C_zPLXrK3WN3Y1">(1)</sup></span></td><td style="width: 5pt"></td><td style="text-align: justify"><span id="xdx_F1B_zaKTVodTNF4h" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote001463" xml:lang="en-US">Amounts reflect
the activity for corporate headquarters not included in the segment information.</ix:footnote></span></td>
</tr>
<tr style="vertical-align: top; text-align: justify">
<td style="text-align: left">&#160;</td><td>&#160;</td><td style="text-align: justify">&#160;</td></tr>
<tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F00_z4sPfA1Lyvub">(2)</sup></span></td><td style="width: 5pt"></td><td style="text-align: justify"><span id="xdx_F19_zVs4s7kjvoVl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><ix:footnote id="Footnote001464" xml:lang="en-US">Net of financed
amount of $<span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure"><ix:nonFraction name="PESI:FinancedPortionAmountInPurchaseOfCapitalExpenditure" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">114,000</ix:nonFraction></span> and $<span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg"><ix:nonFraction name="PESI:FinancedPortionAmountInPurchaseOfCapitalExpenditure" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" scale="3" unitRef="USD">29,000</ix:nonFraction></span> for the three months ended March 31, 2022 and 2021, respectively.</ix:footnote></span></td>
</tr></table>

</ix:nonNumeric><p id="xdx_8AA_zYnQBdS6JSG4" style="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


<ix:exclude><!-- Field: Page; Sequence: 21; Value: 1 -->
    <div style="border-bottom: Black 1.5pt solid; margin-bottom: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%"><!-- Field: Sequence; Type: Arabic; Name: PageNo -->19<!-- Field: /Sequence --></td></tr></table></div>
    <div style="break-before: page; margin-top: 6pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font-size: 10pt"><tr style="vertical-align: top; text-align: left"><td style="text-align: center; width: 100%">&#160;</td></tr></table></div>
    <!-- Field: /Page --></ix:exclude>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:IncomeTaxDisclosureTextBlock"><p id="xdx_80B_eus-gaap--IncomeTaxDisclosureTextBlock_zSl2mQVkMpq7" style="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>12.</b></span></td>
  <td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_820_zmBqf4qJ3zJ6">Income Taxes</span></span></b></span></td></tr>
</table>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities
available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company had income tax benefit of approximately $<span id="xdx_909_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3d_di_c20220101__20220331_zdCdKCjvdZ79"><ix:nonFraction name="us-gaap:IncomeTaxExpenseBenefit" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="-3" sign="-" unitRef="USD">673,000</ix:nonFraction></span> for continuing operations for the three months ended March 31, 2022 as compared
to income tax benefit of approximately $<span id="xdx_904_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3d_di_c20210101__20210331_zQ3HseJmVnIg"><ix:nonFraction name="us-gaap:IncomeTaxExpenseBenefit" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="-3" sign="-" unitRef="USD">17,000</ix:nonFraction></span> for continuing operations for the three months ended March 31, 2021. The Company&#8217;s
effective tax rate was approximately <span id="xdx_906_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pid_dp_uPure_c20220101__20220331_zXpOUhQ4IOCj"><ix:nonFraction name="us-gaap:EffectiveIncomeTaxRateContinuingOperations" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">35.0</ix:nonFraction></span>% and <span id="xdx_90D_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pid_dp_uPure_c20210101__20210331_zxQa7IvS04ac"><ix:nonFraction name="us-gaap:EffectiveIncomeTaxRateContinuingOperations" contextRef="From2021-01-012021-03-31" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">1.6</ix:nonFraction></span>% for the three months ended March 31, 2022 and the corresponding period of 2021, respectively.
The Company&#8217;s tax rate for the three months ended March 31, 2022 was impacted by non-deductible expenses and state taxes. The Company&#8217;s
tax rate for the three months ended March 31, 2021 was impacted by non-deductible expenses, state taxes, and by the Company&#8217;s full
valuation on its net deferred tax assets which was subsequently released partially in the third quarter of 2021.</span></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:VariableInterestEntityDisclosureTextBlock"><p id="xdx_80D_eus-gaap--VariableInterestEntityDisclosureTextBlock_zYULxnZfBWX1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>13.</b></span></td>
  <td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_823_zHyu4aD6ysYd">Variable Interest Entities (&#8220;VIE&#8221;)</span></span></b></span></td></tr>
</table>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company and Engineering/Remediation Resources Group, Inc. (&#8220;ERRG&#8221;) previously entered into an unpopulated joint venture agreement
for project work bids within the Company&#8217;s Services Segment with the joint venture doing business as Perma-Fix ERRG, a general
partnership. The Company has a <span id="xdx_90E_eus-gaap--VariableInterestEntityOwnershipPercentage_pid_dp_c20220101__20220331_z6rlTYCizBNe"><ix:nonFraction name="us-gaap:VariableInterestEntityOwnershipPercentage" contextRef="From2022-01-01to2022-03-31" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">51</ix:nonFraction></span>% partnership interest in the joint venture and ERRG has a <span id="xdx_90A_eus-gaap--VariableInterestEntityOwnershipPercentage_pid_dp_c20220101__20220331__dei--LegalEntityAxis__custom--EngineeringRemediationResourcesGroupIncMember_zg3pO0inReG8"><ix:nonFraction name="us-gaap:VariableInterestEntityOwnershipPercentage" contextRef="From2022-01-012022-03-31_custom_EngineeringRemediationResourcesGroupIncMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">49</ix:nonFraction></span>% partnership interest in the joint venture.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company determines whether joint ventures in which it has invested meet the criteria of a VIE at the start of each new venture and when
a reconsideration event has occurred. A VIE is a legal entity that satisfies any of the following characteristics: (a) the legal entity
does not have sufficient equity investment at risk; (b) the equity investors at risk as a group, lack the characteristics of a controlling
financial interest; or (c) the legal entity is structured with disproportionate voting rights.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company consolidates a VIE if it is determined to be the primary beneficiary of the VIE. The primary beneficiary has both the power to
direct the activities of the VIE that most significantly impact the entity&#8217;s economic performance and the obligation to absorb
losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
on the Company&#8217;s evaluation of Perma-Fix ERRG and related agreements with Perma-Fix ERRG, the Company determined that Perma-Fix
ERRG continues to be a VIE in which we are the primary beneficiary. At March 31, 2022, Perma-Fix ERRG had total assets of $<span id="xdx_90D_eus-gaap--Assets_iI_pid_c20220331__dei--LegalEntityAxis__custom--PermaFixERRGMember_zyppQN5LyWdl"><ix:nonFraction name="us-gaap:Assets" contextRef="AsOf2022-03-31_custom_PermaFixERRGMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">122,000</ix:nonFraction></span> and
total liabilities of approximately $<span id="xdx_908_eus-gaap--Liabilities_iI_pid_c20220331__dei--LegalEntityAxis__custom--PermaFixERRGMember_zNxLTaxkizxd"><ix:nonFraction name="us-gaap:Liabilities" contextRef="AsOf2022-03-31_custom_PermaFixERRGMember" format="ixt:numdotdecimal" decimals="0" unitRef="USD">122,000</ix:nonFraction></span> which are all recorded as current.</span></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:CompensationAndEmployeeBenefitPlansTextBlock"><p id="xdx_806_eus-gaap--CompensationAndEmployeeBenefitPlansTextBlock_z0Wvewh3ONn8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>14.</b></span></td>
  <td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_828_zKohzZPd5NMl">Executive Compensation</span></span></b></span></td></tr>
</table>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s Compensation Committee and the Board determined that no performance payment would be made to each executive officer under
his 2021 Management Incentive Plan (&#8220;MIP&#8221;). In lieu of any performance payment to each executive officer under his 2021 MIP
and in an attempt to retain the executive officer, on January 20, 2022, the Compensation Committee and the Board determined that the
base annual compensation for each executive officer for 2022 is increased by approximately <span id="xdx_909_ecustom--PercentageIncreaseInAnnualCompensation_pid_dp_c20220101__20220331__srt--TitleOfIndividualAxis__srt--ExecutiveOfficerMember_zzx4BKhP77Ag"><ix:nonFraction name="PESI:PercentageIncreaseInAnnualCompensation" contextRef="From2022-01-012022-03-31_srt_ExecutiveOfficerMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">6.4</ix:nonFraction></span>%, effective January 1, 2022, to offset
the cost-of-living increase.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 20, 2022, the Board and the Compensation Committee also approved individual MIP for the calendar year 2022 for each of our executive
officers. Each MIP is effective January 1, 2022 and applicable for year 2022. Each MIP provides guidelines for the calculation of annual
cash incentive-based compensation, subject to Compensation Committee oversight and modification. The performance compensation under each
of the MIPs is based upon meeting certain of the Company&#8217;s separate target objectives during 2022. Assuming each target objective
is achieved under the same performance threshold range under each MIP, the total potential target performance compensation payable ranges
from <span id="xdx_903_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zoTabCeMVdUf" title="Compensation arrangement with individual, cash awards, minimum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumPercentage" contextRef="From2022-01-192022-01-20_custom_CEOMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">25</ix:nonFraction></span>% to <span id="xdx_902_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--CEOMember_z5b6xDBMT406" title="Compensation arrangement with individual, cash awards, maximum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumPercentage" contextRef="From2022-01-192022-01-20_custom_CEOMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">150</ix:nonFraction></span>% of the 2022 base salary for the CEO ($<span id="xdx_90C_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zqCAb6jKpLP2" title="Compensation arrangement with individual, cash awards, minimum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumAmount" contextRef="AsOf2022-01-20_custom_CEOMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">93,717</ix:nonFraction></span> to $<span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zWjJSLq2Gxpc" title="Compensation arrangement with individual, cash awards, maximum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumAmount" contextRef="AsOf2022-01-20_custom_CEOMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">562,304</ix:nonFraction></span>), <span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zR6EIgTyIZT9" title="Compensation arrangement with individual, cash awards, minimum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumPercentage" contextRef="From2022-01-192022-01-20_srt_ChiefFinancialOfficerMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">25</ix:nonFraction></span>% to <span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zvT8aZx4OZDe" title="Compensation arrangement with individual, cash awards, maximum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumPercentage" contextRef="From2022-01-192022-01-20_srt_ChiefFinancialOfficerMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">100</ix:nonFraction></span>% of the 2022 base salary for the CFO ($<span id="xdx_904_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_z0FbJEbayUgc" title="Compensation arrangement with individual, cash awards, minimum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumAmount" contextRef="AsOf2022-01-20_srt_ChiefFinancialOfficerMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">76,193</ix:nonFraction></span>
to $<span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zrabjIwE7D7l" title="Compensation arrangement with individual, cash awards, maximum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumAmount" contextRef="AsOf2022-01-20_srt_ChiefFinancialOfficerMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">304,772</ix:nonFraction></span>), <span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_z7ZYoqgMYbO3" title="Compensation arrangement with individual, cash awards, minimum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumPercentage" contextRef="From2022-01-192022-01-20_custom_ExecutiveVicePresidentOfStrategicInitiativesMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">25</ix:nonFraction></span>% to <span id="xdx_905_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_zmEhL94zKPJ3" title="Compensation arrangement with individual, cash awards, maximum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumPercentage" contextRef="From2022-01-192022-01-20_custom_ExecutiveVicePresidentOfStrategicInitiativesMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">100</ix:nonFraction></span>% of the 2022 base salary for the EVP of Strategic Initiatives ($<span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_zjqOLC7QpBM" title="Compensation arrangement with individual, cash awards, minimum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumAmount" contextRef="AsOf2022-01-20_custom_ExecutiveVicePresidentOfStrategicInitiativesMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">63,495</ix:nonFraction></span> to $<span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_z4aApH7Mg0Vk" title="Compensation arrangement with individual, cash awards, maximum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumAmount" contextRef="AsOf2022-01-20_custom_ExecutiveVicePresidentOfStrategicInitiativesMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">253,980</ix:nonFraction></span>), <span id="xdx_900_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zADzbP3dk9p3" title="Compensation arrangement with individual, cash awards, minimum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumPercentage" contextRef="From2022-01-192022-01-20_custom_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">25</ix:nonFraction></span>% to <span id="xdx_907_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zB3JMne2MsIi" title="Compensation arrangement with individual, cash awards, maximum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumPercentage" contextRef="From2022-01-192022-01-20_custom_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">100</ix:nonFraction></span>% of the 2022
base salary for the EVP of Nuclear and Technical Services ($<span id="xdx_901_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zQzWxsKTMOa1" title="Compensation arrangement with individual, cash awards, minimum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumAmount" contextRef="AsOf2022-01-20_custom_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">76,193</ix:nonFraction></span> to $<span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zbXA9MhzNKld" title="Compensation arrangement with individual, cash awards, maximum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumAmount" contextRef="AsOf2022-01-20_custom_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">304,772</ix:nonFraction></span>) and <span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_zUmoOKiREC1d" title="Compensation arrangement with individual, cash awards, minimum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumPercentage" contextRef="From2022-01-192022-01-20_custom_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">25</ix:nonFraction></span>% to <span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_zMqqkQ7m6xKd" title="Compensation arrangement with individual, cash awards, maximum, percentage"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumPercentage" contextRef="From2022-01-192022-01-20_custom_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" format="ixt:numdotdecimal" decimals="INF" scale="-2" unitRef="Pure">100</ix:nonFraction></span>% ($<span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_znOGHeyofI3k" title="Compensation arrangement with individual, cash awards, minimum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMinimumAmount" contextRef="AsOf2022-01-20_custom_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">65,308</ix:nonFraction></span> to $<span id="xdx_901_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_z1thkEZ7O3o5" title="Compensation arrangement with individual, cash awards, maximum, amount"><ix:nonFraction name="PESI:CompensationArrangementWithIndividualCashAwardsMaximumAmount" contextRef="AsOf2022-01-20_custom_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" format="ixt:numdotdecimal" decimals="0" scale="0" unitRef="USD">261,233</ix:nonFraction></span>) of the 2022 base
salary for the EVP of Waste Treatment Operations.</span></p>

</ix:nonNumeric><ix:nonNumeric contextRef="From2022-01-01to2022-03-31" escape="true" name="us-gaap:SubsequentEventsTextBlock"><p id="xdx_809_eus-gaap--SubsequentEventsTextBlock_zjXPibVJeAHl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" border="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>15.</b></span></td>
  <td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_829_zaYCASotLFld">Subsequent Events</span></span></b></span></td></tr>
</table>


<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Management
evaluated events occurring subsequent to March 31, 2022 through May 5, 2022, the date these consolidated financial statements were available
for issuance, and determined that no material recognizable subsequent events occurred.</span></p>

</ix:nonNumeric><p id="xdx_816_zrZ3p7k4lYmj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<!-- Field: Page; Sequence: 22; Options: NewSection; Value: 20 -->
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    <div style="break-before: page; margin-top: 6pt"><p style="margin: 0pt">&#160;</p></div>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: justify"><span id="a_001"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
2.</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 91%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Management&#8217;s
    Discussion and Analysis of Financial Condition and Results of Operations</b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Forward-looking
Statements</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certain
statements contained within this report may be deemed &#8220;forward-looking statements&#8221; within the meaning of Section 27A of the
Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (collectively, the &#8220;Private
Securities Litigation Reform Act of 1995&#8221;). All statements in this report other than a statement of historical fact are forward-looking
statements that are subject to known and unknown risks, uncertainties and other factors, which could cause actual results and performance
of the Company to differ materially from such statements. The words &#8220;believe,&#8221; &#8220;expect,&#8221; &#8220;anticipate,&#8221;
&#8220;intend,&#8221; &#8220;will,&#8221; and similar expressions identify forward-looking statements. Forward-looking statements contained
herein relate to, among other things,</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">demand
    for our services;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">reductions
    in the level of government funding in future years; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">reducing
    operating costs and non-essential expenditures;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">ability
    to meet loan agreement quarterly covenant requirements;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">cash
    flow requirements;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Canadian
    receivable;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">sufficient
    liquidity to continue business;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">future
    results of operations and liquidity; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">effect
    of economic disruptions on our business; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">government
    funding for our services;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">may
    not have liquidity to repay debt if our lender accelerates payment of our borrowings;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">deployment
    of unit;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">manner
    in which the applicable government will be required to spend funding to remediate various sites;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">funding
    operations;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">continued
    increases in pricing and/or further tightening supply chain;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">fund
    capital expenditures from cash from operations and/or financing;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">impact
    from COVID-19 and impact from other delays;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">improvement
    in waste shipments;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">fund
    remediation expenditures for sites from funds generated internally;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">collection
    of accounts receivables;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">compliance
    with environmental regulations; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    effect of being a PRP; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    sites for violations of environmental laws and remediation of our facilities; </span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">remediation
    of material weakness;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">future
    price increases; and</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">continuation
    of contracts with federal government.</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">While
the Company believes the expectations reflected in such forward-looking statements are reasonable, it can give no assurance such expectations
will prove to be correct. There are a variety of factors, which could cause future outcomes to differ materially from those described
in this report, including, but not limited to:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 0.25in; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">general
    economic conditions;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">contract
    bids, including international markets;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">material
    reduction in revenues;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to meet PNC covenant requirements;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to collect in a timely manner a material amount of receivables; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">increased
    competitive pressures; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to maintain and obtain required permits and approvals to conduct operations; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">public
    not accepting our new technology;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to develop new and existing technologies in the conduct of operations;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to maintain and obtain closure and operating insurance requirements;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to retain or renew certain required permits;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">discovery
    of additional contamination or expanded contamination at any of the sites or facilities leased or owned by us or our subsidiaries
    which would result in a material increase in remediation expenditures;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">delays
    at our third-party disposal site can extend collection of our receivables greater than twelve months;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">refusal
    of third-party disposal sites to accept our waste;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">changes
    in federal, state and local laws and regulations, especially environmental laws and regulations, or in interpretation of such;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">requirements
    to obtain permits for TSD activities or licensing requirements to handle low level radioactive materials are limited or lessened;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">potential
    increases in equipment, maintenance, operating or labor costs;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">management
    retention and development;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">financial
    valuation of intangible assets is substantially more/less than expected;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    requirement to use internally generated funds for purposes not presently anticipated;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to continue to be profitable on an annualized basis;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    of the Company to maintain the listing of its Common Stock on the NASDAQ;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">terminations
    of contracts with government agencies or subcontracts involving government agencies or reduction in amount of waste delivered to
    the Company under the contracts or subcontracts; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">renegotiation
    of contracts involving government agencies;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">federal
    government&#8217;s inability or failure to provide necessary funding to remediate contaminated federal sites;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">disposal
    expense accrual could prove to be inadequate in the event the waste requires re-treatment; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to raise capital on commercially reasonable terms;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">inability
    to increase profitable revenue; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">impact
    of the COVID-19;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">delays
    in waste shipments and delay in activities under new contracts;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">new
    governmental regulations;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">lender
    refuses to waive non-compliance or revise our covenant so that we are in compliance; </span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">continued
    supply chain interruptions;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">continued
    inflationary pressures;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">other
    unanticipated factors; and</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">risk
                                            factors and other factors set forth in &#8220;Special Note Regarding Forward-Looking Statements&#8221;
                                            contained in the Company&#8217;s 2021 Form 10-K and the &#8220;Forward-Looking Statements&#8221;
                                            contained in the &#8220;Management&#8217;s Discussion and Analysis of Financial Condition
                                            and Results of Operations&#8221; (&#8220;MD&amp;A&#8221;) of this first quarter 2022 Form
                                            10-Q.</span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>COVID-19
Impact and Impact due to Other Delays</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
first quarter financial results continued to be impacted by COVID-19. As previously disclosed, within our Services Segment, we experienced
delays in procurement actions and contract awards during the first half of 2021 resulting from the impact of COVID-19. Since the end
of the second quarter of 2021, we were awarded a number of new contracts. However, due to continued COVID-19 impact and/or customer administrative
delay experienced by certain customers, work under certain of our new awards was temporarily curtailed/delayed which continued for most
of the first quarter of 2022 and negatively impacted revenue. We have, however, begun to see improvement in activities from certain of
these new projects starting in the latter part of the first quarter of 2022. Our Treatment Segment revenue continues to be negatively
impacted by continued waste shipment delays from certain customers since the latter part of the first quarter of 2020, the start of the
pandemic. We expect to see a gradual improvement in waste receipts from these customers in the upcoming months as our customers start
easing up on COVID-19 restrictions; however, such may not be the case based on our customers&#8217; own responses to COVID-19, including,
but not limited to delaying or limiting full return-to-work schedules. Additionally, as a result of supply chain challenges, we experienced
a delay in the delivery of a new technology waste processing unit from our supplier which negatively impacted our revenue as associated
revenue was not able to be generated. Delivery of this unit had been expected during the third quarter of 2021 but did not occur until
the latter part of the first quarter of 2022. Deployment of this unit is expected to commence in the second quarter of 2022. Within our
Treatment Segment, we are experiencing a large increase in proposal requests. We continue to have bids currently submitted in both segments
and awaiting awards.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
this time, we believe we have sufficient liquidity on hand to continue business operations during the next twelve months. At March 31,
2022, we had borrowing availability under our revolving credit facility of approximately $4,544,000 which was based on a percentage of
eligible receivables and subject to certain reserves. As a result of a recent amendment to our Loan Agreement, we are required to maintain
a minimum of $3,000,000 in borrowing availability under our revolving credit until the minimum FCCR requirement for the quarter ended
June 30, 2022 has been met and certified to our lender (see &#8220;Financing Activities&#8221; within this MD&amp;A for a discussion
of this amendment). We continue to assess the need in reducing operating costs during this volatile time, which may include curtailing
certain capital expenditures and eliminating non-essential expenditures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are closely monitoring our customers&#8217; payment performance. However, since a significant portion of our revenues is derived from
government related contracts, we do not expect our accounts receivable collections to be materially impacted due to COVID-19.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
the situations surrounding COVID-19 continues to remain fluid, the full impact and extent of the pandemic on our financial results and
liquidity cannot be estimated with any degree of certainty. We continue to closely monitor the impact of the COVID-19 pandemic on all
aspects of our business, including supply chain challenges, our labor force and increasing costs from inflationary pressures (see &#8220;Known
Trends and Uncertainties&#8221; &#8211; &#8220;Supply Chain&#8221; and &#8220;Inflation and Cost Increases&#8221; within this MD&amp;A).</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Overview</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revenue
decreased by $7,218,000 or 31.2% to $15,915,000 for the three months ended March 31, 2022 from $23,133,000 for the corresponding period
of 2021. The decrease was primarily within our Services Segment where revenue decreased to $8,436,000 from $15,638,000 or approximately
46.1%. As discussed above, work under certain of the new projects awarded to our Services Segment at the end of the second quarter of
2021 continued to be delayed/curtailed for most of the first quarter of 2022 due to COVID-19 impact and/or administrative delays experienced
by certain customers. However, we have begun to see improvement in activities from certain of these new projects starting in the latter
part of the first quarter of 2022. The lower revenue in the first quarter of 2022 resulting from delays/curtailments in work was further
exacerbated by the completion of a large project in the second quarter of 2021 which was not replaced with a similar size contract because
of delays in contract awards and procurement from COVID-19 impact in the first half of 2021. Our Treatment Segment revenue decreased
slightly by $16,000 or 0.2%. Although we saw minimal overall change in revenue within Treatment Segment, our Treatment Segment revenue
has not returned to pre-pandemic levels as certain customers continue to delay waste shipments due to impact of COVID-19. Gross profit
decreased $720,000 or 30.6%. Selling, General, and Administrative (&#8220;SG&amp;A&#8221;) expenses increased $217,000 or 6.8% for the
three months ended March 31, 2022 as compared to the corresponding period of 2021.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Business
Environment</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
Treatment and Services Segments&#8217; business continues to be heavily dependent on services that we provide to governmental clients,
primarily as subcontractors for others who are prime contractors to government entities or directly as the prime contractor. We believe
demand for our services will continue to be subject to fluctuations due to a variety of factors beyond our control, including, without
limitation, the economic conditions, the manner in which the applicable government will be required to spend funding to remediate various
sites, and/or potential further impact from COVID-19. In addition, our governmental contracts and subcontracts relating to activities
at governmental sites in the United States are generally subject to termination for convenience at any time at the government&#8217;s
option, and our governmental contracts/task orders with the Canadian government authorities also allow the authorities to terminate the
contract/task orders at any time for convenience. Our work under all of our contracts/task order agreements with Canadian government
authorities has substantially been completed. See &#8220;Known Trends and Uncertainties &#8211; Perma-Fix Canada, Inc. (&#8220;PF Canada&#8221;)&#8221;
for additional discussion as to a terminated Canadian TOA. Significant reductions in the level of governmental funding or specifically
mandated levels for different programs that are important to our business could have a material adverse impact on our business, financial
position, results of operations and cash flows.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are continually reviewing methods to raise additional capital to supplement our liquidity requirements, when needed, and reducing our
operating costs. We continue to aggressively bid on various contracts, including potential contracts within the international markets.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Results
of Operations</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
reporting of financial results and pertinent discussions are tailored to our two reportable segments: The Treatment and Services. Our
financial results for 2021 also included our Medical Segments. As previously disclosed, we made the strategic decision to cease all R&amp;D
activities under the Medical Segment and sold 100% of our interest in PFM Poland (which comprised the Medical Segment) in December 2021.
Our Medical Segment had not generated any revenue and was involved in our medical isotope production technology. All costs previously
incurred by the Medical Segment were included within R&amp;D.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Summary
&#8211; Three Months Ended March 31, 2022 and 2021</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td colspan="15" style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Three Months Ended</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td colspan="15" style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">March 31,</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated
    (amounts in thousands)</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">%</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">%</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 44%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revenues</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 10%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">15,915</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">.6</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">.6</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Loss
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    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;&#8212;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Loss
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1,883</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(11.8</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(999</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4.3</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">11</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;&#8212;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;&#8212;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(.2</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(12.1</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4.5</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Income
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Loss
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    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4.5</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Revenues</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidated
revenues decreased $7,218,000 for the three months ended March 31, 2022, compared to the three months ended March 31, 2021, as follows:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(In
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">23,133</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">100.0</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(7,218</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(31.2</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup>(1)
</sup>Includes wastes generated by government clients of $470,000 and $745,000 for the three months ended March 31, 2022 and the corresponding
period of 2021, respectively.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment
Segment revenue decreased slightly by $16,000 or 0.2% for the three months ended March 31, 2022 over the same period in 2021. The decrease
in hazardous/non-hazardous revenue was primarily due to lower waste volume. Revenue from other nuclear waste was lower primarily due
to lower averaged price waste. Waste from government generators increased by approximately $1,050,000 or 23.9% primarily due higher waste
volume. Although we saw minimal overall change in revenue within Treatment Segment, our Treatment Segment revenue has not returned to
pre-pandemic levels as certain customers continue to delay waste shipments due, in part, to impact of COVID-19. Our Services Segment
revenue decreased by approximately $7,202,000 or 46.1%. Work under certain of the new projects awarded to our Services Segment at the
end of the second quarter of 2021 continued to be delayed/curtailed for most of the first quarter of 2022 due to COVID-19 impact and/or
administrative delays experienced by certain customers. However, we have begun to see improvement in activities from certain of these
new projects starting in the latter part of the first quarter of 2022. The lower revenue in the first quarter of 2022 resulting from
delays/curtailments in work was further exacerbated by the completion of a large project in the second quarter of 2021 which was not
replaced with a similar size contract from delays in contract awards and procurement from COVID-19 impact in the first half of 2021.
Our Services Segment revenues are project based; as such, the scope, duration and completion of each project vary. As a result, our Services
Segment revenues are subject to differences relating to timing and project value.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Cost
of Goods Sold</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cost
of goods sold decreased $6,498,000 for the quarter ended March 31, 2022, compared to the quarter ended March 31, 2021, as follows:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(In
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Change</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 35%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">91.5</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">6,570</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">87.7</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
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    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">88.2</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cost
of goods sold for the Treatment Segment increased by approximately $271,000 or 4.1%. The increased costs was primarily due to higher
overall fixed costs of approximately $277,000 resulting from the following: general expenses were higher by $144,000 primarily due to
higher utility costs; salaries and payroll related expenses were higher by approximately $49,000; depreciation expenses were higher by
approximately $59,000 due to depreciation for asset retirement obligations in connection with our EWOC facility; regulatory expenses
were higher by approximately $15,000; and travel expenses were higher by $10,000 resulting from easing up of COVID-19 restrictions. Treatment
Segment&#8217;s variable costs decreased slightly by approximately $6,000 primarily due to lower overall costs in disposal, transportation,
material and supplies which were mostly offset by higher outside services costs. Services Segment cost of goods sold decreased approximately
$6,769,000 or 47.6% primarily due to lower revenue. The decrease in cost of goods sold was primarily due to lower salaries/payroll related,
travel, and outside services expenses totaling $6,909,000. The overall lower costs were partially offset by higher material and supplies
costs. Included within cost of goods sold is depreciation and amortization expense of $439,000 and $394,000 for the three months ended
March 31, 2022, and 2021, respectively.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Gross
Profit</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Gross
profit for the quarter ended March 31, 2022 decreased $720,000 over the corresponding period of 2021, as follows:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Change</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 35%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">8.5</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">925</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">12.3</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(287</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Services</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">11.8</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">9.2</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment
Segment gross profit decreased by $287,000 or 31.0% and gross margin decreased to 8.5% from 12.3% primarily due to the impact of our
fixed costs. Services Segment gross profit decreased by $433,000 or 30.3% and gross margin increased from 9.2% to 11.8%. Our overall
Services Segment gross margin is impacted by our current projects which are competitively bid on and will therefore, have varying margin
structures.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>SG&amp;A</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">SG&amp;<span style="text-transform: uppercase">A
</span>expenses increased $217,000 for the three months ended March 31, 2022, as compared to the corresponding period for 2021, as follows:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(In
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">%
    Revenue</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    Revenue</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: center; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 35%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Administrative</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;&#8212;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,372</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;&#8212;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">315</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1,040</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">13.9</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">978</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">13.0</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">62</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Services</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">695</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">8.2</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">855</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.5</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(160</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; padding-left: 10pt; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">3,422</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">21.5</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">3,205</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">13.9</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">217</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Administrative
SG&amp;A expenses were higher primarily due to the following: outside services expenses were higher by approximately $174,000 resulting
from more consulting/legal/outside services matters; salaries and payroll related expenses were higher by approximately $116,000 primarily
due to higher stock-based compensation expenses from options granted to certain employees in October 2021 and higher salaries as in 2021,
resources were allocated in supporting Medical Segment&#8217;s R&amp;D/administrative functions; director fees were higher by approximately
$18,000 resulting from one additional director who joined the Board in May 2021; travel expenses were higher by approximately $12,000;
and general expenses were lower by approximately $5,000. Treatment Segment SG&amp;A expenses were higher primarily due to higher trade
show and travel costs resulting from easing up of COVID-19 restrictions. The decrease in SG&amp;A expenses within our Services Segment
was primarily due to the following: salaries/payroll related and consulting expenses were lower by approximately $130,000 as in 2021,
increased hours and consulting costs were spent on bid and proposal efforts; bad debt expenses were lower by approximately $38,000; general
expenses were slightly lower by $6,000 and travel expenses were higher by approximately $14,000. Included in SG&amp;A expenses is depreciation
and amortization expense of $17,000 and $6,000 for the three months ended March 31, 2022 and 2021, respectively.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>R&amp;D</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">R&amp;D
expenses decreased $54,000 for the three months ended March 31, 2022, as compared to the corresponding period for 2021, as follows:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 80%">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(In
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 12%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">14</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treatment</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">65</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">47</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Services</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">14</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">13</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">PF
    Medical</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;&#8212;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">76</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(76</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; padding-left: 10pt; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Total</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">96</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">150</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(54</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">R&amp;D
costs consist primarily of employee salaries and benefits, laboratory costs, third party fees, and other related costs associated with
the development of new technologies and technological enhancement of new potential waste treatment processes. The decrease was primarily
the result of the sale of PF Poland in December 2021 which comprised of our Medical Segment and which previously was involved in the
R&amp;D of our medical isotope technology.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Interest
Expense</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Interest
expense decreased approximately $32,000 in the first quarter of 2022 as compared to the corresponding period of 2021 primarily due to
lower interest expense from our declining term loan balance outstanding. Also, interest expense for the first quarter of 2021 included
interest accrued for our Paycheck Protection Program (&#8220;PPP&#8221;) Loan which was forgiven by the U.S. Small Business Administration
effective June 15, 2021.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Income
Taxes</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
had income tax benefit of approximately $673,000 for continuing operations for the three months ended March 31, 2022 as compared to income
tax benefit of approximately $17,000 for continuing operations for the three months ended March 31, 2021. Our effective tax rate was
approximately 35.0% and 1.6% for the three months ended March 31, 2022 and the corresponding period of 2021, respectively. Our tax rate
for the three months ended March 31, 2022 was impacted by non-deductible expenses and state taxes. Our tax rate for the three months
ended March 31, 2021 was impacted by non-deductible expenses, state taxes, and the full valuation on our net deferred tax assets which
was subsequently released partially in the third quarter of 2021.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Liquidity
and Capital Resources</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
cash flow requirements during the three months ended March 31, 2022 were primarily financed by our operations, cash on hand and credit
facility availability. Subject to the impact of COVID-19 and other delays as discussed above, our cash flow requirements for the next
twelve months will consist primarily of general working capital needs, scheduled principal payments on our debt obligations, remediation
projects, and planned capital expenditures. We plan to fund these requirements from our operations, credit facility availability, our
capital expenditure line and cash on hand. We continue to explore all sources of increasing our capital to supplement our liquidity requirements,
when needed, and to improve our revenue and working capital. We are continually reviewing operating costs and reviewing the possibility
of further reducing operating costs and non-essential expenditures to bring them in line with revenue levels, when necessary. At this
time, we believe that our cash flows from operations, our available liquidity from our credit facility, our capital expenditure line
and our cash on hand should be sufficient to fund our operations for the next twelve months. However, due to the uncertainty of COVID-19
and other delays as disclosed in &#8220;COVID-19 Impact and Impact due to Other Delays&#8221; within this MD&amp;A, there are no assurances
such will be the case.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table reflects the cash flow activities during the first three months of 2022:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(In
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    <td colspan="2" style="font: 10pt Times New Roman, Times, Serif; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 78%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cash
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 18%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">148</span></td><td style="font: 10pt Times New Roman, Times, Serif; width: 1%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cash
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(142</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cash
    used in investing activities of continuing operations</span></td><td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(321</span></td><td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: White">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; padding-bottom: 1.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cash
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Decrease
    in cash and finite risk sinking fund (restricted cash)</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</span></td><td style="border-bottom: Black 2.5pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(504</span></td><td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 2.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">)</span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 31.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2022, we were in a positive cash position with no revolving credit balance. At March 31, 2022, we had cash on hand of approximately
$3,925,000, which included account balances of our foreign subsidiaries totaling approximately $67,000.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Operating
Activities</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accounts
receivable, net of allowances for doubtful accounts, totaled $10,322,000 at March 31, 2022, a decrease of $1,050,000 from the December
31, 2021 balance of $11,372,000. The decrease was primarily due to timing of accounts receivable collection and timing of invoicing.
Our contracts with our customers are subject to various payment terms and conditions; therefore, our accounts receivable are impacted
by these terms and conditions and the related timing of accounts receivable collections. Additionally, contracts with our customers may
sometimes result in modifications which can cause delays in collections. See discussion under &#8220;Known Trends and Uncertainties &#8211;
Perma-Fix Canada, Inc. (&#8220;PF Canada&#8221;) for a discussion as to certain account receivable.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unbilled
receivables totaled $5,275,000 at March 31, 2022, a decrease of $3,720,000 from the December 31, 2021 balance of $8,995,000. The decrease
in unbilled receivables was primarily within our Services Segment due to invoicing in connection with our Canadian projects.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accounts
payable, totaled $10,329,000 at March 31, 2022, a decrease of $1,646,000 from the December 31, 2021 balance of $11,975,000. Our accounts
payable are impacted by the timing of payments as we are continually managing payment terms with our vendors to maximize our cash position
throughout all segments.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
had working capital of $2,341,000 (which included working capital of our discontinued operations) at March 31, 2022, as compared to working
capital of $4,060,000 at December 31, 2021. Our working capital was negatively impacted primarily by our results of operations which
were heavily impacted from COVID-19 and other delays as discussed above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Investing
Activities</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">For
the three months ended March 31, 2022, our purchases of capital equipment totaled approximately $459,000, of which $114,000 was subject
to financing, with the remaining funded from cash from operations and our credit facility. We have budgeted approximately $2,000,000
for 2022 capital expenditures primarily for our Treatment and Services Segments to maintain operations and regulatory compliance requirements
and support revenue growth. Certain of these budgeted projects may either be delayed until later years or deferred altogether. We plan
to fund our capital expenditures from cash from operations and/or financing. The initiation and timing of projects are also determined
by financing alternatives or funds available for such capital projects.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
March 2022, we signed a joint venture term sheet addressing plans to partner with Springfields Fuels Limited (&#8220;SFL&#8221;), an
affiliate of Westinghouse Electric Company LLC, to develop and manage a nuclear waste-materials treatment facility (the &#8220;Facility&#8221;)
in the United Kingdom. The Facility is for the purpose of expanding the partners&#8217; waste treatment capabilities for the European
nuclear market. It is expected that upon finalization of a partnership agreement, SFL will have an ownership interest of fifty-five (55)
percent and our interest will be forty-five (45) percent. The finalization, form and capitalization of this unpopulated partnership is
subject to numerous conditions, including but not limited to, winning a certain contract, completion and execution of a definitive agreement
and facility design, and the granting of required regulatory, lender or permitting approvals. Upon finalization of this venture, we will
be required to make an investment in this venture. The amount of our investment, the period of which it is to be made and the method
of funding are to be determined.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Financing
Activities</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
entered into a Second Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated May 8, 2020 (&#8220;Loan Agreement&#8221;),
with PNC National Association (&#8220;PNC&#8221;), acting as agent and lender. The Loan Agreement provides us with the following credit
facility with a maturity date of March 15, 2024: (a) up to $18,000,000 revolving credit (&#8220;revolving credit&#8221;) and (b) a term
loan (&#8220;term loan&#8221;) of approximately $1,742,000, requiring monthly installments of $35,547. The maximum that we can borrow
under the revolving credit is based on a percentage of eligible receivables (as defined) at any one time reduced by outstanding standby
letters of credit and borrowing reductions that our lender may impose from time to time. Our Loan Agreement, as amended, also provides
a capital expenditure line of up to $1,000,000 with advances on the line, subject to certain limitations, permitted for up to twelve
months starting May 4, 2021 (the &#8220;Borrowing Period&#8221;). Only interest is payable on advances during the Borrowing Period. At
the end of the Borrowing Period, the total amount advanced under the line will amortize equally based on a five-year amortization schedule
with principal payment due monthly plus interest. At the maturity date of the Loan Agreement, as amended, any unpaid principal balance
plus interest, if any, will become due. No advance on the capital line has been made as of March 31, 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
March 29, 2022, we entered into an amendment to our Loan Agreement with our lender which provided, among other things, the following:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">waived
    our failure to meet the minimum quarterly FCCR requirement for the fourth quarter of 2021;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">removes
    the quarterly FCCR testing requirement for the first quarter of 2022;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">reinstates
    the quarterly FCCR testing requirement starting for the second quarter of 2022 and revises the methodology to be used in calculating
    the FCCR for the quarters ending June 30, 2022, September 30, 2022, and December 31, 2022 (with no change to the minimum 1.15:1 ratio
    requirement for each quarter);</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">requires
    maintenance of a minimum of $3,000,000 in borrowing availability under the revolving credit until the minimum FCCR requirement for
    the quarter ended June 30, 2022 has been met and certified to the lender; and</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">revises
    the annual rate used to calculate the Facility Fee (as defined in the Loan Agreement) on the revolving credit, with addition of the
    capital expenditure line, from 0.375% to 0.500%. Upon meeting the minimum FCCR requirement of 1.15:1 on a twelve months trailing
    basis, the Facility Fee rate of 0.375% will be reinstated.</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the amendment, we paid our lender a fee of $15,000 which is being amortized over the remaining term of the Loan Agreement,
as amended, as interest expense-financing fees.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to our Loan Agreement, as amended, payment of annual rate of interest due on the revolving credit is at prime (3.50% at March 31, 2022)
plus 2% or LIBOR plus 3.00% and the term loan and capital expenditure line at prime plus 2.50% or LIBOR plus 3.50%. Under the LIBOR option
of interest payment, a LIBOR floor of 0.75% applies in the event that LIBOR falls below 0.75% at any point in time.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
credit facility under our Loan Agreement, as amended, with PNC contains certain financial covenants, along with customary representations
and warranties. A breach of any of these financial covenants, unless waived by PNC, could result in a default under our credit facility
allowing our lender to immediately require the repayment of all outstanding debt under our credit facility and terminate all commitments
to extend further credit. We were not required to perform testing of the FCCR requirement in the first quarter of 2022 pursuant to the
March 29, 2022 amendment as discussed above; otherwise, we met all of our other financial covenant requirements. We expect to meet our
quarterly financial covenant requirements for the next twelve months under our Loan Agreement.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.25in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Off
Balance Sheet Arrangements</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.25in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, we are required to post standby letters of credit and various bonds to support contractual obligations to customers and
other obligations, including facility closures. At March 31, 2022, the total amount of standby letters of credit outstanding totaled
approximately $3,020,000 and the total amount of bonds outstanding totaled approximately $51,295,000. We also provide closure and post-closure
requirements through a financial assurance policy for certain of our Treatment Segment facilities through AIG. At March 31, 2022, the
closure and post-closure requirements for these facilities were approximately $21,047,000.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Critical
Accounting Policies and Estimates</b></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
were no significant changes in our accounting policies or critical accounting estimates that are discussed in our Annual Report on Form
10-K for the year ended December 31, 2021.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Recent
Accounting Pronouncements</b></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">See
&#8220;Note 2 &#8211; Summary of Significant Accounting Policies&#8221; in the &#8220;Notes to Consolidated Financial Statements&#8221;
for the recent accounting pronouncements that have been adopted during the quarter ended March 31, 2022, or will be adopted in future
periods.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Known
Trends and Uncertainties</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Significant
Customers</i>. Our Treatment and Services Segments have significant relationships with the U.S governmental authorities through contracts
entered into indirectly as subcontractors for others who are prime contractors or directly as the prime contractor to government authorities.
We also had significant relationships with Canadian government authorities primarily through TOAs entered into with Canadian government
authorities. Project work under all TOAs with Canadian government authorities has substantially been completed. The contracts that we
are a party to with others as subcontractors to the U.S federal government or directly with the U.S federal government generally provide
that the government may terminate the contract at any time for convenience at the government&#8217;s option. The contracts/TOAs that
we are a party to with Canadian governmental authorities also generally provide that the government authorities may terminate the contracts/TOAs
at any time for any reason for convenience. Our inability to continue under existing contracts that we have with the U.S government (directly
or indirectly as a subcontractor) or significant reductions in the level of governmental funding in any given year could have a material
adverse impact on our operations and financial condition. We performed services relating to waste generated by government clients (domestic
and foreign (primarily Canadian)), either indirectly as a subcontractor or directly as a prime contractor to government entities, representing
approximately $14,158,000 or 89.0% of our total revenue during the three months ended March 31, 2022, as compared to $20,157,000 or 87.1%
of our total revenue during the corresponding period of 2021.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>COVID-19
Impact.</i> See &#8220;COVID-19 Impact and Impact due to Other Delays&#8221; within this MD&amp;A for a discussion of the impact of COVID-19
on our financial results and the potential impact it may have to our future financial results and business operations.</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Perma-Fix
Canada, Inc. (&#8220;PF Canada&#8221;)</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the fourth quarter of 2021, PF Canada received a Notice of Termination (&#8220;NOT&#8221;) from CNL on a TOA that PF Canada entered into
with CNL in May 2019 for remediation work within Ontario, Canada (&#8220;Agreement&#8221;). The NOT was received after work under the
TOA was substantially completed and work under the TOA has since been completed. CNL may terminate the TOA at any time for convenience.
As of March 31, 2022, PF Canada has approximately $2,722,000 in unpaid receivables and unbilled costs due from CNL as a result of work
performed under the TOA. Additionally, CNL has approximately $1,150,000 in contractual holdback under the TOA that is payable to PF Canada.
CNL also established a bond securing approximately $1,900,000 (CAD) to cover certain issue raised in connection with the TOA. Under the
TOA, CNL may be entitled to set off certain costs and expenses incurred by CNL in connection with the termination of the TOA, including
the bond as discussed above, against amounts owed to PF Canada for work performed by PF Canada or its subcontractors. PF Canada continues
to be in discussions with CNL to finalize the amounts due to PF Canada under the TOA and continues to believes these amounts are due
and payable.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Supply
Chain.</i> We use various commercially available materials and supplies which include among other things chemicals, containers/drums
and personal protective equipment in our operations. We generally source these items from various suppliers in order to take advantage
of competitive pricing.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
also utilize various types of equipment, which include among other things trucks, flatbeds, lab equipment, heavy machineries, in carrying
out our business operations. Our equipment may be obtained through direct purchase, rental option or leases. Within our Services Segment,
equipment required for projects are often provided by our subcontractors as part of our contract agreement with the subcontractor. Due
to some of our specialized waste treatment processes, certain equipment that we utilize are designed and built to our specifications.
We rely on various commercial equipment suppliers for the construction of these equipment. Due to recent supply chain challenges, we
experienced a delay in the delivery of a new waste processing unit to us by our supplier due to shortage of parts required for the construction
of the unit, among other things. Delivery of this unit was expected during the third quarter of 2021 but did not occur until the latter
part of the first quarter of 2022. The supply chain interruption delayed deployment of our new technology which negatively impacted our
revenue for 2021 and the first quarter of 2022 as associated revenue was not able to be generated. Deployment of this unit is expected
to commence in the second quarter of 2022. Continued increases in pricing and/or potential delays in procurements of material and supplies
and equipment required for our operations resulting from further tightening supply chain could further adversely affect our operations
and profitability.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Potential
Partnership with Springfields Fuels Limited. </i>As discussed above, we have signed a term sheet addressing plans to partner with Springfields
Fuels Limited, an affiliate of Westinghouse Electric Company LLC, to develop and manage a nuclear waste-materials treatment facility
in the United Kingdom. See &#8220;Liquidity and Capital Resources &#8211; Investing Activities&#8221; of this MD&amp;A for a discussion
of this transaction.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Inflation
and Cost Increases.</i> Continued increases in any of our operating costs, including further changes in fuel prices (which impacts our
transportation costs), wage rates, supplies, and utility costs, may further increase our overall cost of goods sold or operating expenses.
Some of these cost increases have been the result of inflationary pressures that could further reduce profitability. We may attempt to
increase our sales prices in order to maintain satisfactory margin; however, competitive pressures in our industry may have the effect
of inhibiting our ability to reflect these increased costs in the prices of our services that we provide to our customers and therefore
reduce our profitability.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Environmental
Contingencies</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are engaged in the waste management services segment of the pollution control industry. As a participant in the on-site treatment, storage
and disposal market and the off-site treatment and services market, we are subject to rigorous federal, state and local regulations.
These regulations mandate strict compliance and therefore are a cost and concern to us. Because of their integral role in providing quality
environmental services, we make every reasonable attempt to maintain complete compliance with these regulations; however, even with a
diligent commitment, we, along with many of our competitors, may be required to pay fines for violations or investigate and potentially
remediate our waste management facilities.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
routinely use third party disposal companies, who ultimately destroy or secure landfill residual materials generated at our facilities
or at a client&#8217;s site. In the past, numerous third-party disposal sites have improperly managed waste and consequently require
remedial action; consequently, any party utilizing these sites may be liable for some or all of the remedial costs. Despite our aggressive
compliance and auditing procedures for disposal of wastes, we could further be notified, in the future, that we are a potentially responsible
party (&#8220;PRP&#8221;) at a remedial action site, which could have a material adverse effect.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have three environmental remediation projects, all within our discontinued operations, which principally entail the removal/remediation
of contaminated soil, and, in most cases, the remediation of surrounding ground water. We expect to fund the expenses to remediate these
sites from funds generated from operations. At March 31, 2022, we had total accrued environmental remediation liabilities of $876,000,
with no change from the December 31, 2021 balance of $876,000. At March 31, 2022, $621,000 of the total accrued environmental liabilities
was recorded as current.</span></p>

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<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="a_002"></span>Item 3.</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 91%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Quantitative
    and Qualitative Disclosures about Market Risks</b></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
required for smaller reporting companies.</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 13.5pt"></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-indent: 0pt"><span id="a_003"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
    4.</b></span></p></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 91%"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Controls
                                            and Procedures</b></span></p></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: top"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Evaluation
                                            of disclosure controls, and procedures.</i></span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
    maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic
    reports filed with the Securities and Exchange Commission is recorded, processed, summarized and reported within the time periods
    specified in the rules and forms of the Securities and Exchange Commission and that such information is accumulated and communicated
    to our management. As of the end of the period covered by this report, we carried out an evaluation with the participation of our
    Principal Executive Officer and Principal Financial Officer. Based on this recent assessment, our Principal Executive Officer and
    Principal Financial Officer have concluded that our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e)
    of the Securities Exchange Act of 1934, as amended) were not effective as of March 31, 2022 as a result of the identified material
    weakness in our internal control over financial reporting as set forth below.</span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certain
    revenue contracts that contained nonstandard terms and conditions were not appropriately evaluated in accordance with ASC 606, &#8220;Revenue
    from Contracts with Customers.&#8221; Specifically, management did not have the appropriate controls in place over the determination
    of revenue recognition for nonroutine and complex revenue transactions. The material weakness identified resulted in errors in the
    Company&#8217;s books and records which led to audit adjustments for the year ended December 31, 2021. The errors arising from the
    underlying revenue adjustments were not material to the financial statements reported in any interim or annual period and therefore,
    did not result in a revision to any previously filed financial statements. However, the control deficiencies could result in misstatements
    of the revenue accounts and related disclosures that would result in a material misstatement to the annual or interim consolidated
    financial statements that would not be prevented or detected in a timely manner. Accordingly, we have determined that the control
    deficiencies when evaluated in the aggregate constitute a material weakness.</span></p></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 9%; text-align: right"></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 91%"><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Remediation
                                            of Material Weakness in Internal Control Over Financial Reporting</i></span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    material weakness as discussed above was primarily attributed to the uniqueness of certain of the Company&#8217;s contracts that
    contain nonstandard terms and conditions. Although the Company&#8217;s policies and procedures were in place to ensure guidance under
    ASC 606 were applied to the majority of its contracts accurately, the Control failed to operate in a manner to specifically identify
    the nonstandard terms that would impact revenue recognition. The Company is evaluating the material weakness identified and is developing
    a plan of remediation to strengthen our internal controls pertaining to evaluating revenue contracts that contain nonstandard terms
    and conditions. This remediation plan includes evaluating the manner in which we use third-party consulting firms with expertise
    in applying the revenue recognition guidance that will assist management with the assessment and evaluation of revenue contracts
    executed that contain nonstandard terms and conditions. In conjunction with further evaluation of this relationship, management will
    also perform a more rigorous evaluation of these nonstandard revenue contracts in accordance with ASC 606.</span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    Company is committed to maintaining a strong internal control environment and believes that these remediation efforts will represent
    significant improvements in our controls. The Company has started to implement these steps, however, some of these steps will take
    time to be fully integrated and confirmed to be effective and sustainable. Additional controls may also be required over time. Until
    the remediation steps set forth above are fully implemented and tested, the material weakness described above will continue to exist.</span></p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Changes
    in internal control over financial reporting</i></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif">&#160;</td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify">Other
than the aforementioned material weakness and remediation plan noted, there was no other change in our internal control over financial
reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during our most recently completed fiscal quarter that
has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.</td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 45pt; text-align: justify">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span id="a_004"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>PART
II &#8211; OTHER INFORMATION</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="a_005"></span>Item 1.</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 91%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Legal
    Proceedings</b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
are no material legal proceedings pending against us and/or our subsidiaries not previously reported by us in Item 3 of our Form 10-K
for the year ended December 31, 2021. Additionally, there has been no other material change in legal proceedings previously disclosed
by us in our Form 10-K for the year ended December 31, 2021.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="a_006"></span>Item 1A.</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 91%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Risk
    Factors</b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
has been no other material change from the risk factors previously disclosed in our Form 10-K for the year ended December 31, 2021, except
for the following under &#8220;Risks Relating to our Common Stock.&#8221;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Our
bylaws designate courts in the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings that may
be initiated by our stockholders, and also designates the Federal District Courts of the United States as the sole and exclusive forum
for resolution of any cause of action arising under the Securities Act of 1933, as amended, which could limit our stockholders&#8217;
ability to obtain a favorable judicial forum for disputes with us or our directors, officers or employees.</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
Bylaws provide that, subject to limited exceptions, the appropriate state court located in the State of Delaware (or if no state court
located within the State of Delaware has jurisdiction, the Federal District Court for the District of Delaware) is the sole and exclusive
forum for:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    derivative action or proceeding brought on our behalf;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    action asserting a claim of breach of a fiduciary duty owed by any of our current or former directors, officers or other employees
    to us or our stockholders;</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    action asserting a claim against us arising pursuant to any provision of the General Corporation Law of the State of Delaware, our
    certificate of incorporation or our bylaws:</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    action asserting an &#8220;internal corporation claim&#8221; (as defined in Section 115 of the Delaware General Corporate Law); or</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
    other action asserting a claim against us that is governed by the internal affairs doctrine (each, a &#8220;Covered Proceeding&#8221;).</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
addition, our Bylaws provide that if any action the subject matter of which is a Covered Proceeding is filed in a court other than the
specified Delaware courts without the approval of our Board of Directors (each, a &#8220;Foreign Action&#8221;), the claiming party will
be deemed to have consented to (i) the personal jurisdiction of the specified Delaware courts in connection with any action brought in
any such courts to enforce the exclusive forum provision described above and (ii) having service of process made upon such claiming party
in any such enforcement action by service upon such claiming party&#8217;s counsel in the Foreign Action as agent for such claiming party.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Further,
our Bylaws provide that, unless we consent in writing to the selection of an alternative forum, the Federal District Courts of the United
States shall be the sole and exclusive forum for the resolution of any complaint asserting a course of action under the Federal Securities
Act of 1933, as amended.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">These
provisions may limit a stockholder&#8217;s ability to bring a claim in a judicial forum that it finds favorable for disputes with us
or our directors, officers or other employees, which may discourage such lawsuits against us and our directors, officers and employees.
Alternatively, if a court were to find these provisions of our Bylaws inapplicable to, or unenforceable in respect of, one or more of
the specified types of actions or proceedings, we may incur additional costs associated with resolving such matters in other jurisdictions,
which could adversely affect our business and financial condition.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span id="a_007"></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Item
    6.</b></span></td>
    <td colspan="3" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline">Exhibits
    </span></b></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td colspan="3" style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline">Exhibits</span></b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 7%; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.1</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 82%; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222008998/ex4-1.htm" style="-sec-extract: exhibit">Third Amendment to Second Amended and Restated Revolving Credit, Term Loan and Security Agreement between Perma-Fix Environmental Services, Inc. and PNC Bank, National Association (as Lender and as Agent), dated March 29, 2022, as incorporated by reference from Exhibit 4.1 to the Company&#8217;s Form 8-K filed on April 4, 2022.</a></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.1</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222002198/ex99-5.htm" style="-sec-extract: exhibit">2022 Incentive Compensation Plan for Chief Executive Officer, effective January 1, 2022, as incorporated by reference from Exhibit 99.5 to the Company&#8217;s Form 8-K filed on January 25, 2022. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS BEEN EXCLUDED BECAUSE IT IS NOT MATERIAL AND WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF PUBLICLY DISCLOSED.</a></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.2</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222002198/ex99-6.htm" style="-sec-extract: exhibit">2022 Incentive Compensation Plan for Chief Financial Officer, effective January 1, 2022, as incorporated by reference from Exhibit 99.6 to the Company&#8217;s Form 8-K filed on January 25, 2022. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS BEEN EXCLUDED BECAUSE IT IS NOT MATERIAL AND WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF PUBLICLY DISCLOSED.</a></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 9%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right; width: 7%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.3</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 2%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify; width: 82%"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222002198/ex99-7.htm" style="-sec-extract: exhibit">2022 Incentive Compensation Plan for EVP of Strategic Initiatives, effective January 1, 2022, as incorporated by reference from Exhibit 99.7 to the Company&#8217;s Form 8-K filed on January 25, 2022. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS BEEN EXCLUDED BECAUSE IT IS NOT MATERIAL AND WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF PUBLICLY DISCLOSED.</a></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.4</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222002198/ex99-8.htm" style="-sec-extract: exhibit">2022 Incentive Compensation Plan for EVP of Nuclear and Technical Services, effective January 1, 2022, as incorporated by reference from Exhibit 99.8 to the Company&#8217;s Form 8-K filed on January 25, 2022. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS BEEN EXCLUDED BECAUSE IT IS NOT MATERIAL AND WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF PUBLICLY DISCLOSED.</a></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.5</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222002198/ex99-9.htm" style="-sec-extract: exhibit">2022 Incentive Compensation Plan for EVP of Waste Treatment Operations, effective January 1, 2022, as incorporated by reference from Exhibit 99.9 to the Company&#8217;s Form 8-K filed on January 25, 2022. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS BEEN EXCLUDED BECAUSE IT IS NOT MATERIAL AND WOULD LIKELY CAUSE COMPETITIVE HARM TO THE COMPANY IF PUBLICLY DISCLOSED.</a></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.6</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><a href="https://www.sec.gov/Archives/edgar/data/891532/000149315222009260/ex10-42.htm" style="-sec-extract: exhibit">Joint
    Venture Term Sheet between Springfields Fuels Limited, an affiliate of Westinghouse, and the Company, as incorporated by reference
    from Exhibit 10.42 to the Company&#8217;s 2021 Form 10-K filed on April 6, 2022. CERTAIN INFORMATION WITHIN THIS EXHIBIT HAS
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">31.1</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">31.2</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">32.1</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">32.2</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Inline
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">101.SCH</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Inline
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  <tr style="font: 10pt Times New Roman, Times, Serif">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">101.CAL</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Inline
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: center"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: center"></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"></p>


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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-right: 0pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>SIGNATURES</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the requirements of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf
by the undersigned, hereunto duly authorized.</span></p>

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

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td colspan="2" style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">PERMA-FIX
    ENVIRONMENTAL SERVICES</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td colspan="2" style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 50%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 5, 2022</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 3%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 47%; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>/s/
    Mark Duff</i></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    Duff</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">President
    and Chief (Principal) Executive Officer</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 5, 2022</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:
    </span></td>
    <td style="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>/s/
    Ben Naccarato</i></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ben
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    (Principal) Financial Officer</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>


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<DOCUMENT>
<TYPE>EX-31.1
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<FILENAME>ex31-1.htm
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin-right: 0pt; font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-right: 0pt; margin-top: 0pt; margin-bottom: 0pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">EXHIBIT
31.1</FONT></P>

<P STYLE="margin-right: 0pt; font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin-right: 0pt; font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CERTIFICATIONS</FONT></P>

<P STYLE="margin-right: 0pt; font: bold 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; text-decoration: none">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I,
Mark Duff, certify that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I
    have reviewed this quarterly report on Form 10-Q of Perma-Fix Environmental Services, Inc.;</FONT></TD>
    </TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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; </FONT></TD>
    </TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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; </FONT></TD>
    </TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registrant&rsquo;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures
    (as defined in Exchange Act Rules 13a-15(e) 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:</FONT></TD>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Evaluated
    the effectiveness of the registrant&rsquo;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</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Disclosed
    in this report any change in the registrant&rsquo;s internal control over financial reporting that occurred during the registrant&rsquo;s
    most recent fiscal quarter (the registrant&rsquo;s fourth fiscal quarter in the case of an annual report) that has materially affected,
    or is reasonably likely to materially affect, the registrant&rsquo;s internal control over financial reporting; and</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registrant&rsquo;s other certifying officer and I have disclosed, based on our most recent evaluation of the internal control over
    financial reporting, to the registrant&rsquo;s auditors and the audit committee of registrant&rsquo;s board of directors (or persons
    performing the equivalent functions):</FONT></TD>
    </TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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&rsquo;s ability to record, process, summarize and report financial information;
    and </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
    fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&rsquo;s
    internal control over financial reporting.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 5, 2022</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Mark Duff</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"></P>
                                                         <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
                                            Duff</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Executive Officer, President</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">and
    Principal Executive Officer</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>ex31-2.htm
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; text-align: right; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
31.2</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-right: 0pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><B>CERTIFICATIONS</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-right: 0pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I,
Ben Naccarato, certify that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">I
    have reviewed this quarterly report on Form 10-Q of Perma-Fix Environmental Services, Inc.;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registrant&rsquo;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures
    (as defined in Exchange Act Rules 13a-15(e) 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:</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Evaluated
    the effectiveness of the registrant&rsquo;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</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Disclosed
    in this report any change in the registrant&rsquo;s internal control over financial reporting that occurred during the registrant&rsquo;s
    most recent fiscal quarter (the registrant&rsquo;s fourth fiscal quarter in the case of an annual report) that has materially affected,
    or is reasonably likely to materially affect, the registrant&rsquo;s internal control over financial reporting; and</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registrant&rsquo;s other certifying officer and I have disclosed, based on our most recent evaluation of the internal control over
    financial reporting, to the registrant&rsquo;s auditors and the audit committee of registrant&rsquo;s board of directors (or persons
    performing the equivalent functions):</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">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&rsquo;s ability to record, process, summarize and report financial information;
    and </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
    fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&rsquo;s
    internal control over financial reporting.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Date:
    May 5, 2022</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Ben Naccarato</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-bottom: 1.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ben
                                            Naccarato</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Executive
    Vice President and</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Financial Officer and</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Principal
    Financial Officer</FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>4
<FILENAME>ex32-1.htm
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
32.1</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION
PURSUANT TO</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>18
U.S.C. SECTION 1350,</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>AS
ADOPTED PURSUANT TO SECTION 906</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>OF
THE SARBANES-OXLEY ACT OF 2002</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the Quarterly Report of Perma-Fix Environmental Services, Inc. (&ldquo;PESI&rdquo;) on Form 10-Q for the quarter ended
March 31, 2022, as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Form 10-Q&rdquo;), I, Mark Duff,
President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. &sect;1350, as adopted pursuant to &sect;906 of
the Sarbanes-Oxley Act of 2002, that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)
The Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. &sect;78m
or &sect;78o(d)); and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)
The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations
of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated:
May 5, 2022</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Mark Duff</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    Duff</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Executive Officer, President</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">and
    Principal Executive Officer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
certification is furnished to the Securities and Exchange Commission solely for purpose of 18 U.S.C. &sect;1350 subject to the knowledge
standard contained therein, and not for any other purpose.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>5
<FILENAME>ex32-2.htm
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXHIBIT
32.2</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CERTIFICATION
PURSUANT TO</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>18
U.S.C. SECTION 1350,</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>AS
ADOPTED PURSUANT TO SECTION 906</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>OF
THE SARBANES-OXLEY ACT OF 2002</B></FONT></P>

<P STYLE="margin-right: 0pt; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the Quarterly Report of Perma-Fix Environmental Services, Inc. (&ldquo;PESI&rdquo;) on Form 10-Q for the quarter ended March
31, 2022, as filed with the Securities and Exchange Commission on the date hereof (the &ldquo;Form 10-Q&rdquo;), I, Ben Naccarato, Vice
President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. &sect;1350, as adopted pursuant to &sect;906 of
the Sarbanes-Oxley Act of 2002, that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)
The Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. &sect;78m
or &sect;78o(d)); and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)
The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations
of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated:
    May 5, 2022</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Ben Naccarato</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ben
    Naccarato</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Executive
    Vice President and Chief Financial</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Officer
    and Principal Financial Officer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
certification is furnished to the Securities and Exchange Commission solely for purpose of 18 U.S.C. &sect;1350 subject to the knowledge
standard contained therein, and not for any other purpose.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"></P>

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<TYPE>EX-101.SCH
<SEQUENCE>6
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	  <link:definition>00000046 - Disclosure - Schedule of Earning Per Share (Details)</link:definition>
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    <element id="PESI_FergusonStockOptionMember" name="FergusonStockOptionMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_SecondMilestoneMember" name="SecondMilestoneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ThirdMilestoneMember" name="ThirdMilestoneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_RobertFergusonMember" name="RobertFergusonMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_EmployeeAndDirectorsMember" name="EmployeeAndDirectorsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_TwoThousandTwentyManagementIncentivePlanMember" name="TwoThousandTwentyManagementIncentivePlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_NotePayableMember" name="NotePayableMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_EngineeringRemediationResourcesGroupIncMember" name="EngineeringRemediationResourcesGroupIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_ExecutiveVicePresidentOfStrategicInitiativesMember" name="ExecutiveVicePresidentOfStrategicInitiativesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" name="ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" name="DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_Permits" name="Permits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalTransportationAccrual" name="DisposalTransportationAccrual" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_InterestOnFinanceLeaseWithPurchaseOption" name="InterestOnFinanceLeaseWithPurchaseOption" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ProvisionForRecoveryOfBadDebtReserves" name="ProvisionForRecoveryOfBadDebtReserves" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_IncreaseDecreaseInUnbilledReceivable" name="IncreaseDecreaseInUnbilledReceivable" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" name="IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_EquipmentPurchaseSubjectToFinanceLease" name="EquipmentPurchaseSubjectToFinanceLease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_EquipmentPurchaseSubjectToFinancing" name="EquipmentPurchaseSubjectToFinancing" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_ScheduleOfWeightedAverageLeaseTableTextBlock" name="ScheduleOfWeightedAverageLeaseTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock" name="OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock" name="ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_ChangesInDeferredRevenuePercentage" name="ChangesInDeferredRevenuePercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" name="LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour" name="FinanceLeaseLiabilityPaymentsDueAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized" name="WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount" name="AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_UnpaidReceivablesAndUnbilledCosts" name="UnpaidReceivablesAndUnbilledCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_PeriodOfFiniteRiskInsurancePolicy" name="PeriodOfFiniteRiskInsurancePolicy" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_MaximumAllowableCoverageOfInsurancePolicy" name="MaximumAllowableCoverageOfInsurancePolicy" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CoverageAmountUnderPolicy" name="CoverageAmountUnderPolicy" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_InsurersObligationToEntityOnTerminationOfContract" name="InsurersObligationToEntityOnTerminationOfContract" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_PercentageIncreaseInAnnualCompensation" name="PercentageIncreaseInAnnualCompensation" nillable="true" xbrli:periodType="duration" type="xbrli:pureItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage" name="CompensationArrangementWithIndividualCashAwardsMinimumPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage" name="CompensationArrangementWithIndividualCashAwardsMaximumPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount" name="CompensationArrangementWithIndividualCashAwardsMinimumAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount" name="CompensationArrangementWithIndividualCashAwardsMaximumAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" name="DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" name="DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" name="AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" name="DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" name="DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" name="DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" name="DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" name="DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" name="LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="PESI_OperatingSegmentsTextBlock" name="OperatingSegmentsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
</schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>7
<FILENAME>pesi-20220331_cal.xml
<DESCRIPTION>XBRL CALCULATION FILE
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="us-gaap_NoncontrollingInterestMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncontrollingInterestMember" xlink:to="us-gaap_NoncontrollingInterestMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoncontrollingInterestMember_lbl" xml:lang="en-US">Noncontrolling Interest [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsMember" xlink:label="us-gaap_RetainedEarningsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsMember_lbl" xml:lang="en-US">Retained Earnings [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ConsolidatedEntitiesAxis" xlink:label="srt_ConsolidatedEntitiesAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ConsolidatedEntitiesAxis_lbl" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_PFMPolandMember" xlink:label="PESI_PFMPolandMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFMPolandMember" xlink:to="PESI_PFMPolandMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PFMPolandMember_lbl" xml:lang="en-US">PFM Poland [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xml:lang="en-US">Concentration Risk Benchmark [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_FixedPriceMember" xlink:label="PESI_FixedPriceMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FixedPriceMember" xlink:to="PESI_FixedPriceMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FixedPriceMember_lbl" xml:lang="en-US">Fixed Price [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="us-gaap_StatementBusinessSegmentsAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementBusinessSegmentsAxis" xlink:to="us-gaap_StatementBusinessSegmentsAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementBusinessSegmentsAxis_lbl" xml:lang="en-US">Segments [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_TreatmentMember" xlink:label="PESI_TreatmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TreatmentMember" xlink:to="PESI_TreatmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TreatmentMember_lbl" xml:lang="en-US">Treatment [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ServicesMember" xlink:label="PESI_ServicesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ServicesMember" xlink:to="PESI_ServicesMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ServicesMember_lbl" xml:lang="en-US">Services [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_TimeandMaterialsMember" xlink:label="PESI_TimeandMaterialsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TimeandMaterialsMember" xlink:to="PESI_TimeandMaterialsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TimeandMaterialsMember_lbl" xml:lang="en-US">Time and Materials [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MajorCustomersAxis" xlink:label="srt_MajorCustomersAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MajorCustomersAxis" xlink:to="srt_MajorCustomersAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MajorCustomersAxis_lbl" xml:lang="en-US">Customer [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DomesticGovernmentMember" xlink:label="PESI_DomesticGovernmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticGovernmentMember" xlink:to="PESI_DomesticGovernmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DomesticGovernmentMember_lbl" xml:lang="en-US">Domestic Government [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DomesticCommercialMember" xlink:label="PESI_DomesticCommercialMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticCommercialMember" xlink:to="PESI_DomesticCommercialMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DomesticCommercialMember_lbl" xml:lang="en-US">Domestic Commercial [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ForeignGovernmentMember" xlink:label="PESI_ForeignGovernmentMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignGovernmentMember" xlink:to="PESI_ForeignGovernmentMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ForeignGovernmentMember_lbl" xml:lang="en-US">Foreign Government [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ForeignCommercialMember" xlink:label="PESI_ForeignCommercialMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignCommercialMember" xlink:to="PESI_ForeignCommercialMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ForeignCommercialMember_lbl" xml:lang="en-US">Foreign Commercial [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardDateAxis" xlink:label="us-gaap_AwardDateAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardDateAxis" xlink:to="us-gaap_AwardDateAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardDateAxis_lbl" xml:lang="en-US">Award Date [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_YearToDateChangesMember" xlink:label="PESI_YearToDateChangesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_YearToDateChangesMember" xlink:to="PESI_YearToDateChangesMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_YearToDateChangesMember_lbl" xml:lang="en-US">Year-to-date Change [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xml:lang="en-US">Finite-Lived Intangible Assets by Major Class [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PatentsMember" xlink:label="us-gaap_PatentsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PatentsMember" xlink:to="us-gaap_PatentsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PatentsMember_lbl" xml:lang="en-US">Patents [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_SoftwareMember" xlink:label="PESI_SoftwareMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SoftwareMember" xlink:to="PESI_SoftwareMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_SoftwareMember_lbl" xml:lang="en-US">Software [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="us-gaap_CustomerRelationshipsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CustomerRelationshipsMember" xlink:to="us-gaap_CustomerRelationshipsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xml:lang="en-US">Customer Relationships [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameAxis_lbl" xml:lang="en-US">Plan Name [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_TwoThousandAndSeventeenStockOptionPlanMember" xlink:label="PESI_TwoThousandAndSeventeenStockOptionPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandAndSeventeenStockOptionPlanMember" xlink:to="PESI_TwoThousandAndSeventeenStockOptionPlanMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TwoThousandAndSeventeenStockOptionPlanMember_lbl" xml:lang="en-US">2017 Stock Option Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualAxis" xlink:label="srt_TitleOfIndividualAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_TitleOfIndividualAxis_lbl" xml:lang="en-US">Title of Individual [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ConsultantMember" xlink:label="PESI_ConsultantMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ConsultantMember" xlink:to="PESI_ConsultantMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ConsultantMember_lbl" xml:lang="en-US">Consultant [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardTypeAxis_lbl" xml:lang="en-US">Award Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_FergusonStockOptionMember" xlink:label="PESI_FergusonStockOptionMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FergusonStockOptionMember" xlink:to="PESI_FergusonStockOptionMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FergusonStockOptionMember_lbl" xml:lang="en-US">Ferguson Stock Option [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementScenarioAxis" xlink:label="srt_StatementScenarioAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_StatementScenarioAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_StatementScenarioAxis_lbl" xml:lang="en-US">Scenario [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_SecondMilestoneMember" xlink:label="PESI_SecondMilestoneMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SecondMilestoneMember" xlink:to="PESI_SecondMilestoneMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_SecondMilestoneMember_lbl" xml:lang="en-US">Second Milestone [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ThirdMilestoneMember" xlink:label="PESI_ThirdMilestoneMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ThirdMilestoneMember" xlink:to="PESI_ThirdMilestoneMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ThirdMilestoneMember_lbl" xml:lang="en-US">Third Milestone [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_RobertFergusonMember" xlink:label="PESI_RobertFergusonMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RobertFergusonMember" xlink:to="PESI_RobertFergusonMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_RobertFergusonMember_lbl" xml:lang="en-US">Robert Ferguson [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_EmployeeAndDirectorsMember" xlink:label="PESI_EmployeeAndDirectorsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorsMember" xlink:to="PESI_EmployeeAndDirectorsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EmployeeAndDirectorsMember_lbl" xml:lang="en-US">Employee and Directors [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember" xlink:label="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember" xlink:to="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember_lbl" xml:lang="en-US">2003 Outside Directors Stock Option Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xml:lang="en-US">Class of Stock [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_TwoThousandTwentyManagementIncentivePlanMember" xlink:label="PESI_TwoThousandTwentyManagementIncentivePlanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandTwentyManagementIncentivePlanMember" xlink:to="PESI_TwoThousandTwentyManagementIncentivePlanMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TwoThousandTwentyManagementIncentivePlanMember_lbl" xml:lang="en-US">2020 Management Incentive Plan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="us-gaap_EmployeeStockOptionMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOptionMember" xlink:to="us-gaap_EmployeeStockOptionMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xml:lang="en-US">Share-Based Payment Arrangement, Option [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DirectorStockOptionsMember" xlink:label="PESI_DirectorStockOptionsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DirectorStockOptionsMember" xlink:to="PESI_DirectorStockOptionsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DirectorStockOptionsMember_lbl" xml:lang="en-US">Director Stock Options [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="us-gaap_FinancialInstrumentAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancialInstrumentAxis" xlink:to="us-gaap_FinancialInstrumentAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancialInstrumentAxis_lbl" xml:lang="en-US">Financial Instrument [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockOptionMember" xlink:label="us-gaap_StockOptionMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockOptionMember" xlink:to="us-gaap_StockOptionMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockOptionMember_lbl" xml:lang="en-US">Equity Option [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_StockOptionOutstandingMember" xlink:label="PESI_StockOptionOutstandingMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_StockOptionOutstandingMember" xlink:to="PESI_StockOptionOutstandingMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_StockOptionOutstandingMember_lbl" xml:lang="en-US">Stock Option Outstanding [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_StockOptionExercisableMember" xlink:label="PESI_StockOptionExercisableMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_StockOptionExercisableMember" xlink:to="PESI_StockOptionExercisableMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_StockOptionExercisableMember_lbl" xml:lang="en-US">Stock Option Exercisable [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TypeOfArrangementAxis" xlink:label="us-gaap_TypeOfArrangementAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TypeOfArrangementAxis" xlink:to="us-gaap_TypeOfArrangementAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xml:lang="en-US">Collaborative Arrangement and Arrangement Other than Collaborative [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_RevolvingCreditMember" xlink:label="PESI_RevolvingCreditMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevolvingCreditMember" xlink:to="PESI_RevolvingCreditMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_RevolvingCreditMember_lbl" xml:lang="en-US">Revolving Credit [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_TermLoanMember" xlink:label="PESI_TermLoanMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TermLoanMember" xlink:to="PESI_TermLoanMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_TermLoanMember_lbl" xml:lang="en-US">Term Loan [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="us-gaap_LongtermDebtTypeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongtermDebtTypeAxis" xlink:to="us-gaap_LongtermDebtTypeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongtermDebtTypeAxis_lbl" xml:lang="en-US">Long-Term Debt, Type [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_NotePayableOneMember" xlink:label="PESI_NotePayableOneMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotePayableOneMember" xlink:to="PESI_NotePayableOneMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_NotePayableOneMember_lbl" xml:lang="en-US">Note Payable to 2023 [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_NotePayableTwoMember" xlink:label="PESI_NotePayableTwoMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotePayableTwoMember" xlink:to="PESI_NotePayableTwoMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_NotePayableTwoMember_lbl" xml:lang="en-US">Note Payable Two [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_NotePayableMember" xlink:label="PESI_NotePayableMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotePayableMember" xlink:to="PESI_NotePayableMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_NotePayableMember_lbl" xml:lang="en-US">Note Payable [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityAxis" xlink:label="us-gaap_CreditFacilityAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CreditFacilityAxis" xlink:to="us-gaap_CreditFacilityAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CreditFacilityAxis_lbl" xml:lang="en-US">Credit Facility [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="us-gaap_RevolvingCreditFacilityMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevolvingCreditFacilityMember" xlink:to="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xml:lang="en-US">Revolving Credit Facility [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentAxis" xlink:label="us-gaap_DebtInstrumentAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xml:lang="en-US">Debt Instrument [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_RevisedLoanAgreementMember" xlink:label="PESI_RevisedLoanAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevisedLoanAgreementMember" xlink:to="PESI_RevisedLoanAgreementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_RevisedLoanAgreementMember_lbl" xml:lang="en-US">Revised Loan Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LegalEntityAxis_lbl" xml:lang="en-US">Legal Entity [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_PNCBankMember" xlink:label="PESI_PNCBankMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PNCBankMember" xlink:to="PESI_PNCBankMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PNCBankMember_lbl" xml:lang="en-US">PNC Bank [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeAxis" xlink:label="srt_RangeAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeAxis" xlink:to="srt_RangeAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeAxis_lbl" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MinimumMember" xlink:label="srt_MinimumMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MinimumMember_lbl" xml:lang="en-US">Minimum [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MaximumMember" xlink:label="srt_MaximumMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MaximumMember_lbl" xml:lang="en-US">Maximum [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LenderMember" xlink:label="PESI_LenderMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LenderMember" xlink:to="PESI_LenderMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LenderMember_lbl" xml:lang="en-US">Lender [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LoanAgreementMember" xlink:label="PESI_LoanAgreementMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LoanAgreementMember" xlink:to="PESI_LoanAgreementMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LoanAgreementMember_lbl" xml:lang="en-US">Loan Agreement [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableRateAxis" xlink:label="us-gaap_VariableRateAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableRateAxis" xlink:to="us-gaap_VariableRateAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_VariableRateAxis_lbl" xml:lang="en-US">Variable Rate [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PrimeRateMember" xlink:label="us-gaap_PrimeRateMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrimeRateMember" xlink:to="us-gaap_PrimeRateMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrimeRateMember_lbl" xml:lang="en-US">Prime Rate [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="us-gaap_LondonInterbankOfferedRateLIBORMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:to="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LondonInterbankOfferedRateLIBORMember_lbl" xml:lang="en-US">London Interbank Offered Rate (LIBOR) [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CapitalExpenditureMember" xlink:label="PESI_CapitalExpenditureMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CapitalExpenditureMember" xlink:to="PESI_CapitalExpenditureMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CapitalExpenditureMember_lbl" xml:lang="en-US">Capital Expenditure [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xml:lang="en-US">Related Party [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CanadianNuclearLaboratoriesLTDMember" xlink:label="PESI_CanadianNuclearLaboratoriesLTDMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CanadianNuclearLaboratoriesLTDMember" xlink:to="PESI_CanadianNuclearLaboratoriesLTDMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CanadianNuclearLaboratoriesLTDMember_lbl" xml:lang="en-US">Canadian Nuclear Laboratories LTD [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_CounterpartyNameAxis" xlink:label="srt_CounterpartyNameAxis" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CounterpartyNameAxis" xlink:to="srt_CounterpartyNameAxis_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CounterpartyNameAxis_lbl" xml:lang="en-US">Counterparty Name [Axis]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_AmericanInternationalGroupIncMember" xlink:label="PESI_AmericanInternationalGroupIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmericanInternationalGroupIncMember" xlink:to="PESI_AmericanInternationalGroupIncMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AmericanInternationalGroupIncMember_lbl" xml:lang="en-US">American International Group, Inc [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ThousandandThreeClosurePolicyMember" xlink:label="PESI_ThousandandThreeClosurePolicyMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ThousandandThreeClosurePolicyMember" xlink:to="PESI_ThousandandThreeClosurePolicyMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ThousandandThreeClosurePolicyMember_lbl" xml:lang="en-US">2003 Closure Policy [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_SegmentsTotalMember" xlink:label="PESI_SegmentsTotalMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SegmentsTotalMember" xlink:to="PESI_SegmentsTotalMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_SegmentsTotalMember_lbl" xml:lang="en-US">Segments Total [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CorporateAndOtherMember" xlink:label="us-gaap_CorporateAndOtherMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CorporateAndOtherMember" xlink:to="us-gaap_CorporateAndOtherMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CorporateAndOtherMember_lbl" xml:lang="en-US">Corporate and Other [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_MedicalMember" xlink:label="PESI_MedicalMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MedicalMember" xlink:to="PESI_MedicalMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_MedicalMember_lbl" xml:lang="en-US">Medical [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_EngineeringRemediationResourcesGroupIncMember" xlink:label="PESI_EngineeringRemediationResourcesGroupIncMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EngineeringRemediationResourcesGroupIncMember" xlink:to="PESI_EngineeringRemediationResourcesGroupIncMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EngineeringRemediationResourcesGroupIncMember_lbl" xml:lang="en-US">Engineering/Remediation Resources Group, Inc [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_PermaFixERRGMember" xlink:label="PESI_PermaFixERRGMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixERRGMember" xlink:to="PESI_PermaFixERRGMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PermaFixERRGMember_lbl" xml:lang="en-US">Perma-Fix ERRG [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ExecutiveOfficerMember" xlink:label="srt_ExecutiveOfficerMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ExecutiveOfficerMember" xlink:to="srt_ExecutiveOfficerMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ExecutiveOfficerMember_lbl" xml:lang="en-US">Executive Officer [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CEOMember" xlink:label="PESI_CEOMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CEOMember" xlink:to="PESI_CEOMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CEOMember_lbl" xml:lang="en-US">CEO [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ChiefFinancialOfficerMember" xlink:label="srt_ChiefFinancialOfficerMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ChiefFinancialOfficerMember" xlink:to="srt_ChiefFinancialOfficerMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ChiefFinancialOfficerMember_lbl" xml:lang="en-US">Chief Financial Officer [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ExecutiveVicePresidentOfStrategicInitiativesMember" xlink:label="PESI_ExecutiveVicePresidentOfStrategicInitiativesMember" />
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      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" xlink:label="PESI_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" />
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CoverAbstract" xlink:to="dei_CoverAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CoverAbstract_lbl" xml:lang="en-US">Cover [Abstract]</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentType_lbl" xml:lang="en-US">Document Type</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentFlag" xlink:label="dei_AmendmentFlag" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AmendmentFlag_lbl" xml:lang="en-US">Amendment Flag</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentDescription" xlink:label="dei_AmendmentDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentDescription" xlink:to="dei_AmendmentDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AmendmentDescription_lbl" xml:lang="en-US">Amendment Description</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentRegistrationStatement" xlink:label="dei_DocumentRegistrationStatement" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentRegistrationStatement" xlink:to="dei_DocumentRegistrationStatement_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentRegistrationStatement_lbl" xml:lang="en-US">Document Registration Statement</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentAnnualReport" xlink:label="dei_DocumentAnnualReport" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAnnualReport" xlink:to="dei_DocumentAnnualReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAnnualReport_lbl" xml:lang="en-US">Document Annual Report</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentQuarterlyReport" xlink:label="dei_DocumentQuarterlyReport" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentQuarterlyReport" xlink:to="dei_DocumentQuarterlyReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentQuarterlyReport_lbl" xml:lang="en-US">Document Quarterly Report</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentTransitionReport" xlink:label="dei_DocumentTransitionReport" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentTransitionReport" xlink:to="dei_DocumentTransitionReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentTransitionReport_lbl" xml:lang="en-US">Document Transition Report</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentShellCompanyReport" xlink:label="dei_DocumentShellCompanyReport" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentShellCompanyReport" xlink:to="dei_DocumentShellCompanyReport_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentShellCompanyReport_lbl" xml:lang="en-US">Document Shell Company Report</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentShellCompanyEventDate" xlink:label="dei_DocumentShellCompanyEventDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentShellCompanyEventDate" xlink:to="dei_DocumentShellCompanyEventDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentShellCompanyEventDate_lbl" xml:lang="en-US">Document Shell Company Event Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodStartDate" xlink:label="dei_DocumentPeriodStartDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodStartDate" xlink:to="dei_DocumentPeriodStartDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodStartDate_lbl" xml:lang="en-US">Document Period Start Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US">Document Period End Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US">Document Fiscal Period Focus</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US">Document Fiscal Year Focus</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US">Current Fiscal Year End Date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFileNumber" xlink:label="dei_EntityFileNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFileNumber" xlink:to="dei_EntityFileNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFileNumber_lbl" xml:lang="en-US">Entity File Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityRegistrantName_lbl" xml:lang="en-US">Entity Registrant Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCentralIndexKey_lbl" xml:lang="en-US">Entity Central Index Key</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityPrimarySicNumber" xlink:label="dei_EntityPrimarySicNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPrimarySicNumber" xlink:to="dei_EntityPrimarySicNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPrimarySicNumber_lbl" xml:lang="en-US">Entity Primary SIC Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityTaxIdentificationNumber" xlink:label="dei_EntityTaxIdentificationNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityTaxIdentificationNumber" xlink:to="dei_EntityTaxIdentificationNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xml:lang="en-US">Entity Tax Identification Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="dei_EntityIncorporationStateCountryCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityIncorporationStateCountryCode" xlink:to="dei_EntityIncorporationStateCountryCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine1" xlink:label="dei_EntityAddressAddressLine1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine1_lbl" xml:lang="en-US">Entity Address, Address Line One</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine2" xlink:label="dei_EntityAddressAddressLine2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine2_lbl" xml:lang="en-US">Entity Address, Address Line Two</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine3" xlink:label="dei_EntityAddressAddressLine3" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine3_lbl" xml:lang="en-US">Entity Address, Address Line Three</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCityOrTown_lbl" xml:lang="en-US">Entity Address, City or Town</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressStateOrProvince" xlink:label="dei_EntityAddressStateOrProvince" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressStateOrProvince_lbl" xml:lang="en-US">Entity Address, State or Province</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCountry_lbl" xml:lang="en-US">Entity Address, Country</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CountryRegion_lbl" xml:lang="en-US">Country Region</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_WrittenCommunications_lbl" xml:lang="en-US">Written Communications</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SolicitingMaterial" xlink:label="dei_SolicitingMaterial" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SolicitingMaterial_lbl" xml:lang="en-US">Soliciting Material</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_NoTradingSymbolFlag_lbl" xml:lang="en-US">No Trading Symbol Flag</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US">Trading Symbol</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SecurityExchangeName" xlink:label="dei_SecurityExchangeName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityExchangeName_lbl" xml:lang="en-US">Security Exchange Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_Security12gTitle" xlink:label="dei_Security12gTitle" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12gTitle" xlink:to="dei_Security12gTitle_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Security12gTitle_lbl" xml:lang="en-US">Title of 12(g) Security</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SecurityReportingObligation" xlink:label="dei_SecurityReportingObligation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityReportingObligation" xlink:to="dei_SecurityReportingObligation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityReportingObligation_lbl" xml:lang="en-US">Security Reporting Obligation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AnnualInformationForm" xlink:label="dei_AnnualInformationForm" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AnnualInformationForm" xlink:to="dei_AnnualInformationForm_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AnnualInformationForm_lbl" xml:lang="en-US">Annual Information Form</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AuditedAnnualFinancialStatements" xlink:label="dei_AuditedAnnualFinancialStatements" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditedAnnualFinancialStatements" xlink:to="dei_AuditedAnnualFinancialStatements_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditedAnnualFinancialStatements_lbl" xml:lang="en-US">Audited Annual Financial Statements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityVoluntaryFilers" xlink:label="dei_EntityVoluntaryFilers" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityVoluntaryFilers" xlink:to="dei_EntityVoluntaryFilers_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityVoluntaryFilers_lbl" xml:lang="en-US">Entity Voluntary Filers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US">Entity Current Reporting Status</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US">Entity Interactive Data Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US">Entity Filer Category</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US">Entity Small Business</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US">Entity Emerging Growth Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityExTransitionPeriod" xlink:label="dei_EntityExTransitionPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityExTransitionPeriod_lbl" xml:lang="en-US">Elected Not To Use the Extended Transition Period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentAccountingStandard" xlink:label="dei_DocumentAccountingStandard" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAccountingStandard" xlink:to="dei_DocumentAccountingStandard_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAccountingStandard_lbl" xml:lang="en-US">Document Accounting Standard</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_OtherReportingStandardItemNumber" xlink:label="dei_OtherReportingStandardItemNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_OtherReportingStandardItemNumber" xlink:to="dei_OtherReportingStandardItemNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_OtherReportingStandardItemNumber_lbl" xml:lang="en-US">Other Reporting Standard Item Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityShellCompany_lbl" xml:lang="en-US">Entity Shell Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityPublicFloat" xlink:label="dei_EntityPublicFloat" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPublicFloat" xlink:to="dei_EntityPublicFloat_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPublicFloat_lbl" xml:lang="en-US">Entity Public Float</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityBankruptcyProceedingsReportingCurrent" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityBankruptcyProceedingsReportingCurrent" xlink:to="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xml:lang="en-US">Entity Bankruptcy Proceedings, Reporting Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentsIncorporatedByReferenceTextBlock" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentsIncorporatedByReferenceTextBlock" xlink:to="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xml:lang="en-US">Documents Incorporated by Reference [Text Block]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US">ASSETS</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xml:lang="en-US">Current assets:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US">Cash</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="us-gaap_AccountsReceivableNetCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xml:lang="en-US">Accounts receivable, net of allowance for doubtful accounts of $26 and $85, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnbilledReceivablesCurrent" xlink:label="us-gaap_UnbilledReceivablesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnbilledReceivablesCurrent" xlink:to="us-gaap_UnbilledReceivablesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnbilledReceivablesCurrent_lbl" xml:lang="en-US">Unbilled receivables</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryNet" xlink:label="us-gaap_InventoryNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="us-gaap_InventoryNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoryNet_lbl" xml:lang="en-US">Inventories</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US">Prepaid and other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl" xml:lang="en-US">Current assets related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsCurrent_lbl" xml:lang="en-US">Total current assets</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xml:lang="en-US">Property and equipment:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BuildingsAndImprovementsGross" xlink:label="us-gaap_BuildingsAndImprovementsGross" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BuildingsAndImprovementsGross_lbl" xml:lang="en-US">Buildings and land</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MachineryAndEquipmentGross" xlink:to="us-gaap_MachineryAndEquipmentGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MachineryAndEquipmentGross_lbl" xml:lang="en-US">Equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_Vehicles" xlink:label="PESI_Vehicles" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Vehicles" xlink:to="PESI_Vehicles_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_Vehicles_lbl" xml:lang="en-US">Vehicles</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseholdImprovementsGross" xlink:label="us-gaap_LeaseholdImprovementsGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseholdImprovementsGross" xlink:to="us-gaap_LeaseholdImprovementsGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseholdImprovementsGross_lbl" xml:lang="en-US">Leasehold improvements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FurnitureAndFixturesGross" xlink:label="us-gaap_FurnitureAndFixturesGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FurnitureAndFixturesGross" xlink:to="us-gaap_FurnitureAndFixturesGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FurnitureAndFixturesGross_lbl" xml:lang="en-US">Office furniture and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConstructionInProgressGross" xlink:label="us-gaap_ConstructionInProgressGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConstructionInProgressGross" xlink:to="us-gaap_ConstructionInProgressGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConstructionInProgressGross_lbl" xml:lang="en-US">Construction-in-progress</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xml:lang="en-US">Total property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US">Less accumulated depreciation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US">Net property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_lbl" xml:lang="en-US">Property and equipment related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseRightOfUseAsset" xlink:to="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xml:lang="en-US">Operating lease right-of-use assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwillAbstract_lbl" xml:lang="en-US">Intangibles and other long term assets:</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_Permits" xlink:label="PESI_Permits" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Permits" xlink:to="PESI_Permits_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_Permits_lbl" xml:lang="en-US">Permits</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherIntangibleAssetsNet" xlink:label="us-gaap_OtherIntangibleAssetsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIntangibleAssetsNet" xlink:to="us-gaap_OtherIntangibleAssetsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIntangibleAssetsNet_lbl" xml:lang="en-US">Other intangible assets - net</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RestrictedCashNoncurrent" xlink:label="us-gaap_RestrictedCashNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashNoncurrent" xlink:to="us-gaap_RestrictedCashNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RestrictedCashNoncurrent_lbl" xml:lang="en-US">Finite risk sinking fund (restricted cash)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxAssetsNet" xlink:to="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xml:lang="en-US">Deferred tax assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xml:lang="en-US">Other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US">Total assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US">LIABILITIES AND STOCKHOLDERS&#8217; EQUITY</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US">Current liabilities:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xml:lang="en-US">Accounts payable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="us-gaap_AccruedLiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesCurrent" xlink:to="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xml:lang="en-US">Accrued expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalTransportationAccrual" xlink:label="PESI_DisposalTransportationAccrual" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalTransportationAccrual" xlink:to="PESI_DisposalTransportationAccrual_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalTransportationAccrual_lbl" xml:lang="en-US">Disposal/transportation accrual</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="us-gaap_DeferredRevenueCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueCurrent" xlink:to="us-gaap_DeferredRevenueCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredRevenueCurrent_lbl" xml:lang="en-US">Deferred revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts" xlink:to="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts_lbl" xml:lang="en-US">Accrued closure costs - current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtCurrent" xlink:label="us-gaap_LongTermDebtCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="us-gaap_LongTermDebtCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xml:lang="en-US">Current portion of long-term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xml:lang="en-US">Current portion of operating lease liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="us-gaap_FinanceLeaseLiabilityCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityCurrent" xlink:to="us-gaap_FinanceLeaseLiabilityCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityCurrent_lbl" xml:lang="en-US">Current portion of finance lease liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl" xml:lang="en-US">Current liabilities related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US">Total current liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent" xlink:to="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent_lbl" xml:lang="en-US">Accrued closure costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="us-gaap_LongTermDebtNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtNoncurrent" xlink:to="us-gaap_LongTermDebtNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtNoncurrent_lbl" xml:lang="en-US">Long-term debt, less current portion</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xml:lang="en-US">Long-term operating lease liabilities, less current portion</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:label="us-gaap_FinanceLeaseLiabilityNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:to="us-gaap_FinanceLeaseLiabilityNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityNoncurrent_lbl" xml:lang="en-US">Long-term finance lease liabilities, less current portion</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_lbl" xml:lang="en-US">Long-term liabilities related to discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="us-gaap_LiabilitiesNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesNoncurrent" xlink:to="us-gaap_LiabilitiesNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesNoncurrent_lbl" xml:lang="en-US">Total long-term liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US">Total liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US">Commitments and Contingencies (Note 9 )</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US">Preferred Stock, $.001 par value; 2,000,000 shares authorized, no shares issued and outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US">Common Stock, $.001 par value; 30,000,000 shares authorized; 13,242,072 and 13,222,552 shares issued, respectively; 13,234,430 and 13,214,910 shares outstanding, respectively</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="us-gaap_AdditionalPaidInCapital" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapital" xlink:to="us-gaap_AdditionalPaidInCapital_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xml:lang="en-US">Additional paid-in capital</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US">Accumulated deficit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_lbl" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TreasuryStockValue" xlink:label="us-gaap_TreasuryStockValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValue" xlink:to="us-gaap_TreasuryStockValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_TreasuryStockValue_lbl" xml:lang="en-US">Less Common Stock in treasury, at cost; 7,642 shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Total stockholders&#8217; equity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US">Total liabilities and stockholders&#8217; equity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_lbl" xml:lang="en-US">Accounts receivable, allowance for doubtful accounts</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Preferred stock, par value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US">Preferred stock, shares authorized</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="us-gaap_PreferredStockSharesIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US">Preferred stock, shares issued</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US">Preferred stock, shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US">Common stock, par value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xml:lang="en-US">Common stock, shares authorized</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesIssued" xlink:label="us-gaap_CommonStockSharesIssued" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xml:lang="en-US">Common stock, shares issued</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xml:lang="en-US">Common stock, shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TreasuryStockShares" xlink:label="us-gaap_TreasuryStockShares" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockShares" xlink:to="us-gaap_TreasuryStockShares_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockShares_lbl" xml:lang="en-US">Treasury stock, shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US">Income Statement [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xml:lang="en-US">Revenues</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostOfGoodsAndServicesSold" xlink:label="us-gaap_CostOfGoodsAndServicesSold" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsAndServicesSold" xlink:to="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xml:lang="en-US">Cost of goods sold</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GrossProfit" xlink:label="us-gaap_GrossProfit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_GrossProfit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_GrossProfit_lbl" xml:lang="en-US">Gross profit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingGeneralAndAdministrativeExpense" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xml:lang="en-US">Selling, general and administrative expenses</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="us-gaap_ResearchAndDevelopmentExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xml:lang="en-US">Research and development</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnDispositionOfAssets1" xlink:label="us-gaap_GainLossOnDispositionOfAssets1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets1" xlink:to="us-gaap_GainLossOnDispositionOfAssets1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_lbl" xml:lang="en-US">Loss on disposal of property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US">Loss from operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xml:lang="en-US">Other income (expense):</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestIncomeOther" xlink:label="us-gaap_InterestIncomeOther" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestIncomeOther" xlink:to="us-gaap_InterestIncomeOther_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestIncomeOther_lbl" xml:lang="en-US">Interest income</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpense" xlink:label="us-gaap_InterestExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_InterestExpense_lbl" xml:lang="en-US">Interest expense</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancingInterestExpense" xlink:label="us-gaap_FinancingInterestExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingInterestExpense" xlink:to="us-gaap_FinancingInterestExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FinancingInterestExpense_lbl" xml:lang="en-US">Interest expense-financing fees</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="us-gaap_OtherNonoperatingIncomeExpense" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xml:lang="en-US">Other</link:label>
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      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xml:lang="en-US">Loss from continuing operations before taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Income tax benefit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Loss from continuing operations, net of taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_lbl" xml:lang="en-US">Loss from discontinued operations (net of taxes) (Note 10)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProfitLoss" xlink:label="us-gaap_ProfitLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ProfitLoss_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Net loss attributable to non-controlling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareBasicAbstract" xlink:label="us-gaap_EarningsPerShareBasicAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAbstract" xlink:to="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xml:lang="en-US">Net loss per common share attributable to Perma-Fix Environmental Services, Inc. stockholders - basic and diluted:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xml:lang="en-US">Continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl" xml:lang="en-US">Discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareBasic" xlink:label="us-gaap_EarningsPerShareBasic" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="us-gaap_EarningsPerShareBasic_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xml:lang="en-US">Net loss per common share</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xml:lang="en-US">Number of common shares used in computing net loss per share:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xml:lang="en-US">Basic</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xml:lang="en-US">Diluted</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProfitLoss_2_lbl" xml:lang="en-US">Net loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xml:lang="en-US">Other comprehensive income:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xml:lang="en-US">Foreign currency translation gain</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_lbl" xml:lang="en-US">Total other comprehensive income</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Comprehensive loss</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_lbl" xml:lang="en-US">Comprehensive loss attributable to non-controlling interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US">Comprehensive loss attributable to Perma-Fix Environmental Services, Inc. stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US">Statement [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementLineItems_lbl" xml:lang="en-US">Statement [Line Items]</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Beginning balance, value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_SharesOutstanding_lbl" xml:lang="en-US">Beginning balance, shares</link:label>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" />
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from operating activities:</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_2_lbl" xml:lang="en-US">Less: loss from discontinued operations, net of taxes (Note 10)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Loss from continuing operations, net of taxes</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US">Adjustments to reconcile loss from continuing operations to cash provided by (used in) operating activities :</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="us-gaap_DepreciationDepletionAndAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationDepletionAndAmortization" xlink:to="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xml:lang="en-US">Depreciation and amortization</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_InterestOnFinanceLeaseWithPurchaseOption" xlink:label="PESI_InterestOnFinanceLeaseWithPurchaseOption" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InterestOnFinanceLeaseWithPurchaseOption" xlink:to="PESI_InterestOnFinanceLeaseWithPurchaseOption_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_InterestOnFinanceLeaseWithPurchaseOption_lbl" xml:lang="en-US">Interest on finance lease with purchase option</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xml:lang="en-US">Amortization of debt issuance costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xml:lang="en-US">Deferred tax benefit</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ProvisionForRecoveryOfBadDebtReserves" xlink:label="PESI_ProvisionForRecoveryOfBadDebtReserves" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ProvisionForRecoveryOfBadDebtReserves" xlink:to="PESI_ProvisionForRecoveryOfBadDebtReserves_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ProvisionForRecoveryOfBadDebtReserves_lbl" xml:lang="en-US">Recovery of bad debt reserves</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:label="us-gaap_GainLossOnDispositionOfAssets" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets" xlink:to="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xml:lang="en-US">Loss on disposal of plant, property, and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:label="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:to="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims_lbl" xml:lang="en-US">Issuance of common stock for services</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensation_lbl" xml:lang="en-US">Stock-based compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xml:lang="en-US">Changes in operating assets and liabilities of continuing operations:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US">Accounts receivable</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_IncreaseDecreaseInUnbilledReceivable" xlink:label="PESI_IncreaseDecreaseInUnbilledReceivable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInUnbilledReceivable" xlink:to="PESI_IncreaseDecreaseInUnbilledReceivable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="PESI_IncreaseDecreaseInUnbilledReceivable_lbl" xml:lang="en-US">Unbilled receivables</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xml:lang="en-US">Prepaid expenses, inventories and other assets</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:to="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_lbl" xml:lang="en-US">Accounts payable, accrued expenses and unearned revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xml:lang="en-US">Cash provided by (used in) continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:to="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl" xml:lang="en-US">Cash used in discontinued operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US">Cash provided by (used in) operating activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from investing activities:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US">Purchases of property and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:to="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_lbl" xml:lang="en-US">Proceeds from sale of plant, property, and equipment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US">Cash used in investing activities of continuing operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US">Cash flows from financing activities:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="us-gaap_RepaymentsOfLinesOfCredit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLinesOfCredit" xlink:to="us-gaap_RepaymentsOfLinesOfCredit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfLinesOfCredit_lbl" xml:lang="en-US">Repayments of revolving credit borrowings</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="us-gaap_ProceedsFromLinesOfCredit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromLinesOfCredit" xlink:to="us-gaap_ProceedsFromLinesOfCredit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromLinesOfCredit_lbl" xml:lang="en-US">Borrowing on revolving credit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeasePrincipalPayments" xlink:label="us-gaap_FinanceLeasePrincipalPayments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeasePrincipalPayments" xlink:to="us-gaap_FinanceLeasePrincipalPayments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FinanceLeasePrincipalPayments_lbl" xml:lang="en-US">Principal repayments of finance lease liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="us-gaap_RepaymentsOfLongTermDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xml:lang="en-US">Principal repayments of long term debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfDebtIssuanceCosts" xlink:to="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xml:lang="en-US">Payment of debt issuance costs</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US">Cash used in financing activities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:to="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xml:lang="en-US">Effect of exchange rate changes on cash</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xml:lang="en-US">(Decrease) increase in cash and finite risk sinking fund (restricted cash)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xml:lang="en-US">Cash and finite risk sinking fund (restricted cash) at beginning of period</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_2_lbl" xml:lang="en-US">Cash and finite risk sinking fund (restricted cash) at end of period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xml:lang="en-US">Supplemental disclosure:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestPaidNet" xlink:label="us-gaap_InterestPaidNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidNet_lbl" xml:lang="en-US">Interest paid</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxesPaid" xlink:label="us-gaap_IncomeTaxesPaid" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaid" xlink:to="us-gaap_IncomeTaxesPaid_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxesPaid_lbl" xml:lang="en-US">Income taxes paid</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract_lbl" xml:lang="en-US">Non-cash investing and financing activities:</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_EquipmentPurchaseSubjectToFinanceLease" xlink:label="PESI_EquipmentPurchaseSubjectToFinanceLease" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EquipmentPurchaseSubjectToFinanceLease" xlink:to="PESI_EquipmentPurchaseSubjectToFinanceLease_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EquipmentPurchaseSubjectToFinanceLease_lbl" xml:lang="en-US">Equipment purchase subject to finance lease</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_EquipmentPurchaseSubjectToFinancing" xlink:label="PESI_EquipmentPurchaseSubjectToFinancing" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EquipmentPurchaseSubjectToFinancing" xlink:to="PESI_EquipmentPurchaseSubjectToFinancing_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_EquipmentPurchaseSubjectToFinancing_lbl" xml:lang="en-US">Equipment purchase subject to financing</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:to="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_lbl" xml:lang="en-US">Basis of Presentation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xml:lang="en-US">Summary of Significant Accounting Policies</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerAbstract" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerAbstract" xlink:to="us-gaap_RevenueFromContractWithCustomerAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract_lbl" xml:lang="en-US">Revenue from Contract with Customer [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:to="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xml:lang="en-US">Revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisclosureLeasesAbstract" xlink:label="PESI_DisclosureLeasesAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisclosureLeasesAbstract" xlink:to="PESI_DisclosureLeasesAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisclosureLeasesAbstract_lbl" xml:lang="en-US">Leases</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LesseeOperatingAndFinanceLeasesTextBlock" xlink:label="PESI_LesseeOperatingAndFinanceLeasesTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LesseeOperatingAndFinanceLeasesTextBlock" xlink:to="PESI_LesseeOperatingAndFinanceLeasesTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_LesseeOperatingAndFinanceLeasesTextBlock_lbl" xml:lang="en-US">Leases</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:to="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock_lbl" xml:lang="en-US">Intangible Assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xml:lang="en-US">Share-Based Payment Arrangement [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xml:lang="en-US">Capital Stock, Stock Plans, Warrants and Stock Based Compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="us-gaap_EarningsPerShareAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_EarningsPerShareAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xml:lang="en-US">Earnings Per Share [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="us-gaap_EarningsPerShareTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareTextBlock" xlink:to="us-gaap_EarningsPerShareTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xml:lang="en-US">Loss Per Share</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="us-gaap_DebtDisclosureAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_DebtDisclosureAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="us-gaap_LongTermDebtTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtTextBlock" xlink:to="us-gaap_LongTermDebtTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebtTextBlock_lbl" xml:lang="en-US">Long Term Debt</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US">Commitments and Contingencies</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:label="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:to="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_lbl" xml:lang="en-US">Discontinued Operations and Disposal Groups [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:to="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xml:lang="en-US">Discontinued Operations</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentReportingAbstract" xlink:label="us-gaap_SegmentReportingAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingAbstract" xlink:to="us-gaap_SegmentReportingAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingAbstract_lbl" xml:lang="en-US">Segment Reporting [Abstract]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock" />
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      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:label="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xml:lang="en-US">Changes in deferred revenue</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_ChangesInDeferredRevenuePercentage" xlink:label="PESI_ChangesInDeferredRevenuePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInDeferredRevenuePercentage" xlink:to="PESI_ChangesInDeferredRevenuePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_ChangesInDeferredRevenuePercentage_lbl" xml:lang="en-US">Changes in deferred revenue, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:to="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ContractWithCustomerLiabilityRevenueRecognized_lbl" xml:lang="en-US">Revenue recognized</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisclosureLeasesAbstract" xlink:to="PESI_DisclosureLeasesAbstract_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_DisclosureLeasesAbstract_2_lbl" xml:lang="en-US">Schedule Of Components Of Lease Cost</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseCost" xlink:label="us-gaap_OperatingLeaseCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseCost" xlink:to="us-gaap_OperatingLeaseCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseCost_lbl" xml:lang="en-US">Lease cost</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="us-gaap_FinanceLeaseRightOfUseAssetAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:to="us-gaap_FinanceLeaseRightOfUseAssetAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseRightOfUseAssetAmortization_lbl" xml:lang="en-US">Amortization of ROU assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="us-gaap_FinanceLeaseInterestExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseInterestExpense" xlink:to="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xml:lang="en-US">Interest on lease liability</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_FinanceLease" xlink:label="PESI_FinanceLease" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinanceLease" xlink:to="PESI_FinanceLease_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="PESI_FinanceLease_lbl" xml:lang="en-US">Finance leases</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShortTermLeaseCost" xlink:label="us-gaap_ShortTermLeaseCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermLeaseCost" xlink:to="us-gaap_ShortTermLeaseCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xml:lang="en-US">Short-term lease rent expense</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCost" xlink:label="us-gaap_LeaseCost" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_LeaseCost_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LeaseCost_lbl" xml:lang="en-US">Total lease cost</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisclosureLeasesAbstract" xlink:to="PESI_DisclosureLeasesAbstract_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="PESI_DisclosureLeasesAbstract_3_lbl" xml:lang="en-US">Schedule Of Weighted Average Lease</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:to="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xml:lang="en-US">Operating leases, weighted average remaining lease terms (years)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:label="us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:to="us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_lbl" xml:lang="en-US">Finance leases, weighted average remaining lease terms (years)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:to="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xml:lang="en-US">Operating leases, weighted average discount rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:label="us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:to="us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_lbl" xml:lang="en-US">Finance leases, weighted average discount rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xml:lang="en-US">Operating Leases 2022</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xml:lang="en-US">Finance Leases 2022</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xml:lang="en-US">Operating Leases 2023</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xml:lang="en-US">Finance Leases 2023</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xml:lang="en-US">Operating Leases 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_lbl" xml:lang="en-US">Finance Leases 2024</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xml:lang="en-US">Operating Leases 2025</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_lbl" xml:lang="en-US">Finance Leases 2025</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xml:lang="en-US">Operating Leases 2026</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_lbl" xml:lang="en-US">Finance Leases 2026</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" xlink:label="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" xlink:to="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_lbl" xml:lang="en-US">Operating Leases 2027 and thereafter</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour" xlink:label="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour" xlink:to="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour_lbl" xml:lang="en-US">2027 and thereafter Finance Leases</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xml:lang="en-US">Operating Leases Total undiscounted lease payments</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsDue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDue_lbl" xml:lang="en-US">Finance Leases Total undiscounted lease payments</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xml:lang="en-US">Operating Leases Less: Imputed interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" xlink:label="us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" xlink:to="us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_lbl" xml:lang="en-US">Finance Leases Less: Imputed interest</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiability" xlink:label="us-gaap_OperatingLeaseLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiability" xlink:to="us-gaap_OperatingLeaseLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xml:lang="en-US">Operating Leases Present value of lease payments</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiability" xlink:label="us-gaap_FinanceLeaseLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiability" xlink:to="us-gaap_FinanceLeaseLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeaseLiability_lbl" xml:lang="en-US">Finance Leases Present value of lease payments</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="us-gaap_OperatingLeaseLiabilityCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_2_lbl" xml:lang="en-US">Current portion of operating lease obligations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="us-gaap_OperatingLeaseLiabilityNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_2_lbl" xml:lang="en-US">Long-term operating lease obligations, less current portion</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityCurrent" xlink:to="us-gaap_FinanceLeaseLiabilityCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FinanceLeaseLiabilityCurrent_2_lbl" xml:lang="en-US">Current portion of finance lease obligations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:to="us-gaap_FinanceLeaseLiabilityNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FinanceLeaseLiabilityNoncurrent_2_lbl" xml:lang="en-US">Long-term finance lease obligations, less current portion</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeasePayments" xlink:label="us-gaap_OperatingLeasePayments" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasePayments" xlink:to="us-gaap_OperatingLeasePayments_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasePayments_lbl" xml:lang="en-US">Operating cash flow from operating leases</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseInterestExpense" xlink:to="us-gaap_FinanceLeaseInterestExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_FinanceLeaseInterestExpense_2_lbl" xml:lang="en-US">Operating cash flow from finance leases</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeasePrincipalPayments" xlink:to="us-gaap_FinanceLeasePrincipalPayments_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeasePrincipalPayments_2_lbl" xml:lang="en-US">Financing cash flow from finance leases</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability" xlink:to="us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_lbl" xml:lang="en-US">Finance liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:to="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_lbl" xml:lang="en-US">Operating liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:to="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xml:lang="en-US">Finite-Lived Intangible Assets [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xlink:label="us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xlink:to="us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_lbl" xml:lang="en-US">Weighted Average Amortization Period (Years)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsGross" xlink:to="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xml:lang="en-US">Gross Carrying Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xml:lang="en-US">Accumulated Amortization</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xml:lang="en-US">Net Carrying Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="us-gaap_AmortizationOfIntangibleAssets" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfIntangibleAssets" xlink:to="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xml:lang="en-US">Amortization of intangible asset</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensation_2_lbl" xml:lang="en-US">Total</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable" xlink:to="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTable_lbl" xml:lang="en-US">Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems" xlink:label="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems" xlink:to="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems_lbl" xml:lang="en-US">Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US">Shares Options Outstanding Beginning</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Outstanding Beginning</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xml:lang="en-US">Shares Options Granted</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Granted</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US">Shares Options Exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl" xml:lang="en-US">Aggregate Intrinsic Value Options Exercised</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl" xml:lang="en-US">Shares Options Forfeited/expired</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Forfeited/expired</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_2_lbl" xml:lang="en-US">Shares Options Outstanding Ending</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_2_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Outstanding Ending</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US">Weighted Average Remaining Contractual Term (years) Outstanding</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_2_lbl" xml:lang="en-US">Aggregate Intrinsic Value Options Outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xml:lang="en-US">Shares Options Exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US">Weighted Average Remaining Contractual Term (years) Exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xml:lang="en-US">Aggregate Intrinsic Value Options Exercisable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_2_lbl" xml:lang="en-US">Shares Options Exercised</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_2_lbl" xml:lang="en-US">Shares Options Forfeited/expired</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_2_lbl" xml:lang="en-US">Shares Options Exercisable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_2_lbl" xml:lang="en-US">Weighted Average Exercise Price Options Exercisable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl" xml:lang="en-US">Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl" xml:lang="en-US">Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_2_lbl" xml:lang="en-US">Number of stock option shares granted</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_2_lbl" xml:lang="en-US">Stock options, exercise price</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_OptionsToPurchaseSharesOfCommonStock" xlink:label="PESI_OptionsToPurchaseSharesOfCommonStock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OptionsToPurchaseSharesOfCommonStock" xlink:to="PESI_OptionsToPurchaseSharesOfCommonStock_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_OptionsToPurchaseSharesOfCommonStock_lbl" xml:lang="en-US">Options to purchase shares</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_lbl" xml:lang="en-US">Unrecognized compensation cost related to unvested options consultant</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_3_lbl" xml:lang="en-US">Remaining stock option</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized" xlink:label="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized" xlink:to="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_lbl" xml:lang="en-US">Weighted average term for unrecognized and unvested option to be recognized</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_2_lbl" xml:lang="en-US">Stock Issued During Period, Shares, Issued for Services</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xml:lang="en-US">Allocated share-based compensation expense</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LoansPayable" xlink:label="us-gaap_LoansPayable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LoansPayable" xlink:to="us-gaap_LoansPayable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LoansPayable_lbl" xml:lang="en-US">Loans payable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xml:lang="en-US">Warrant to purchase</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xml:lang="en-US">Warrants exercise price</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_WarrantExercisableDescription" xlink:label="PESI_WarrantExercisableDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_WarrantExercisableDescription" xlink:to="PESI_WarrantExercisableDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_WarrantExercisableDescription_lbl" xml:lang="en-US">Warrant exercisable, description</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract" xlink:label="us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract" xlink:to="us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_lbl" xml:lang="en-US">Net loss attributable to Perma-Fix Environmental Services, Inc., common stockholders:</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="us-gaap_IncomeLossFromContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperations" xlink:to="us-gaap_IncomeLossFromContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl" xml:lang="en-US">Loss from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_3_lbl" xml:lang="en-US">Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasic" xlink:to="us-gaap_EarningsPerShareBasic_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EarningsPerShareBasic_2_lbl" xml:lang="en-US">Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="us-gaap_EarningsPerShareDiluted" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareDiluted" xlink:to="us-gaap_EarningsPerShareDiluted_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xml:lang="en-US">Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_lbl" xml:lang="en-US">Weighted average shares outstanding:</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2_lbl" xml:lang="en-US">Basic weighted average shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:to="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xml:lang="en-US">Add: dilutive effect of stock options</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:to="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_lbl" xml:lang="en-US">Add: dilutive effect of warrants</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2_lbl" xml:lang="en-US">Diluted weighted average shares outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US">Stock options</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount" xlink:label="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount" xlink:to="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US">Warrant</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTable" xlink:label="us-gaap_DebtInstrumentTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTable" xlink:to="us-gaap_DebtInstrumentTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentTable_lbl" xml:lang="en-US">Schedule of Long-Term Debt Instruments [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="us-gaap_DebtInstrumentLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentLineItems" xlink:to="us-gaap_DebtInstrumentLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="us-gaap_DebtInstrumentMaturityDate" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="us-gaap_DebtInstrumentMaturityDate_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xml:lang="en-US">Debt due date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:to="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage_lbl" xml:lang="en-US">Effective interest rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="us-gaap_DeferredFinanceCostsNet" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNet" xlink:to="us-gaap_DeferredFinanceCostsNet_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xml:lang="en-US">Debt Issuance Costs, Net</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongTermDebt_lbl" xml:lang="en-US">Total debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="us-gaap_LongTermDebtCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebtCurrent_2_lbl" xml:lang="en-US">Less current portion of long-term debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtNoncurrent" xlink:to="us-gaap_LongTermDebtNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LongTermDebtNoncurrent_2_lbl" xml:lang="en-US">Long-term debt</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="us-gaap_DebtInstrumentMaturityDate_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentMaturityDate_2_lbl" xml:lang="en-US">Debt instrument maturity date</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:to="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xml:lang="en-US">Line of credit facility, maximum borrowing capacity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentPeriodicPayment" xlink:label="us-gaap_DebtInstrumentPeriodicPayment" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPayment" xlink:to="us-gaap_DebtInstrumentPeriodicPayment_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentPeriodicPayment_lbl" xml:lang="en-US">Debt instrument periodic payment</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:to="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_lbl" xml:lang="en-US">Debt instrument, borrowing capacity, amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityBorrowingCapacityDescription" xlink:label="us-gaap_LineOfCreditFacilityBorrowingCapacityDescription" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityBorrowingCapacityDescription" xlink:to="us-gaap_LineOfCreditFacilityBorrowingCapacityDescription_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityBorrowingCapacityDescription_lbl" xml:lang="en-US">Line of credit facility, borrowing capacity, description</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:label="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:to="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_lbl" xml:lang="en-US">Percentage of unused line fees</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentFeeAmount" xlink:label="us-gaap_DebtInstrumentFeeAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFeeAmount" xlink:to="us-gaap_DebtInstrumentFeeAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentFeeAmount_lbl" xml:lang="en-US">Debt Instrument, Fee Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:to="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xml:lang="en-US">Percentage of basis spread on variable rate</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:to="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_lbl" xml:lang="en-US">Line of credit facility, remaining borrowing capacity</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="us-gaap_LettersOfCreditOutstandingAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LettersOfCreditOutstandingAmount" xlink:to="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xml:lang="en-US">Letters of credit outstanding, amount</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:to="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xml:lang="en-US">Collaborative Arrangement and Arrangement Other than Collaborative [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:to="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xml:lang="en-US">Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_UnpaidReceivablesAndUnbilledCosts" xlink:label="PESI_UnpaidReceivablesAndUnbilledCosts" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnpaidReceivablesAndUnbilledCosts" xlink:to="PESI_UnpaidReceivablesAndUnbilledCosts_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_UnpaidReceivablesAndUnbilledCosts_lbl" xml:lang="en-US">Unpaid receivables and unbilled costs</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AccountsReceivableNetCurrent_2_lbl" xml:lang="en-US">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_BondSecuringAmount" xlink:label="PESI_BondSecuringAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BondSecuringAmount" xlink:to="PESI_BondSecuringAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_BondSecuringAmount_lbl" xml:lang="en-US">Bond securing amount</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_PeriodOfFiniteRiskInsurancePolicy" xlink:label="PESI_PeriodOfFiniteRiskInsurancePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PeriodOfFiniteRiskInsurancePolicy" xlink:to="PESI_PeriodOfFiniteRiskInsurancePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PeriodOfFiniteRiskInsurancePolicy_lbl" xml:lang="en-US">Period of finite risk insurance policy</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_MaximumAllowableCoverageOfInsurancePolicy" xlink:label="PESI_MaximumAllowableCoverageOfInsurancePolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MaximumAllowableCoverageOfInsurancePolicy" xlink:to="PESI_MaximumAllowableCoverageOfInsurancePolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_MaximumAllowableCoverageOfInsurancePolicy_lbl" xml:lang="en-US">Maximum allowable coverage of insurance policy</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CoverageAmountUnderPolicy" xlink:label="PESI_CoverageAmountUnderPolicy" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CoverageAmountUnderPolicy" xlink:to="PESI_CoverageAmountUnderPolicy_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CoverageAmountUnderPolicy_lbl" xml:lang="en-US">Coverage amount under the policy</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashNoncurrent" xlink:to="us-gaap_RestrictedCashNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_RestrictedCashNoncurrent_2_lbl" xml:lang="en-US">Restricted Cash, Noncurrent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestIncomeOther" xlink:to="us-gaap_InterestIncomeOther_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InterestIncomeOther_2_lbl" xml:lang="en-US">Interest Income, Other</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_InsurersObligationToEntityOnTerminationOfContract" xlink:label="PESI_InsurersObligationToEntityOnTerminationOfContract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InsurersObligationToEntityOnTerminationOfContract" xlink:to="PESI_InsurersObligationToEntityOnTerminationOfContract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_InsurersObligationToEntityOnTerminationOfContract_lbl" xml:lang="en-US">Insurers obligation to entity on termination of contract</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LettersOfCreditOutstandingAmount" xlink:to="us-gaap_LettersOfCreditOutstandingAmount_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_2_lbl" xml:lang="en-US">Letters of Credit Outstanding, Amount</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_BondOutstanding" xlink:label="PESI_BondOutstanding" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BondOutstanding" xlink:to="PESI_BondOutstanding_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_BondOutstanding_lbl" xml:lang="en-US">Bond outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl" xml:lang="en-US">Current assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_lbl" xml:lang="en-US">Other assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_2_lbl" xml:lang="en-US">Total current assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_lbl" xml:lang="en-US">Long-term assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_lbl" xml:lang="en-US">Property, plant and equipment, net</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_lbl" xml:lang="en-US">Total long-term assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation_lbl" xml:lang="en-US">Total assets</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl" xml:lang="en-US">Current liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_lbl" xml:lang="en-US">Accounts payable</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_lbl" xml:lang="en-US">Accrued expenses and other liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_lbl" xml:lang="en-US">Environmental liabilities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_2_lbl" xml:lang="en-US">Total current liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_lbl" xml:lang="en-US">Long-term liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities_lbl" xml:lang="en-US">Closure liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_lbl" xml:lang="en-US">Environmental liabilities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_2_lbl" xml:lang="en-US">Total long-term liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_lbl" xml:lang="en-US">Total liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationAndAmortizationDiscontinuedOperations" xlink:label="us-gaap_DepreciationAndAmortizationDiscontinuedOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortizationDiscontinuedOperations" xlink:to="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_lbl" xml:lang="en-US">Depreciation</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortizationDiscontinuedOperations" xlink:to="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_2_lbl" xml:lang="en-US">Depreciation and Amortization, Discontinued Operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_4_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_4_lbl" xml:lang="en-US">Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" xlink:label="us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal" xlink:to="us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal_lbl" xml:lang="en-US">Net of tax benefit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_lbl" xml:lang="en-US">Schedule of Segment Reporting Information, by Segment [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="us-gaap_SegmentReportingInformationLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingInformationLineItems" xlink:to="us-gaap_SegmentReportingInformationLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingInformationLineItems_lbl" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:to="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_3_lbl" xml:lang="en-US">Revenue from external customers</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_IntercompanyRevenues" xlink:label="PESI_IntercompanyRevenues" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IntercompanyRevenues" xlink:to="PESI_IntercompanyRevenues_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_IntercompanyRevenues_lbl" xml:lang="en-US">Intercompany revenues</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_GrossProfit_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GrossProfit_2_lbl" xml:lang="en-US">Gross profit</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationAndAmortization" xlink:label="us-gaap_DepreciationAndAmortization" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortization" xlink:to="us-gaap_DepreciationAndAmortization_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xml:lang="en-US">Depreciation and amortization</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2_lbl" xml:lang="en-US">Segment income (loss) before income taxes</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_2_lbl" xml:lang="en-US">Income tax (benefit) expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_3_lbl" xml:lang="en-US">Segment income (loss)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2_lbl" xml:lang="en-US">Expenditures for segment assets (net)</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure" xlink:label="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure" xlink:to="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure_lbl" xml:lang="en-US">Financed portion amount in the purchase of capital expenditure</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SalesOfInterestPercentage" xlink:to="PESI_SalesOfInterestPercentage_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="PESI_SalesOfInterestPercentage_2_lbl" xml:lang="en-US">Sales of interest percentage</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_3_lbl" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:to="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateContinuingOperations_lbl" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Percent</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableInterestEntityOwnershipPercentage" xlink:label="us-gaap_VariableInterestEntityOwnershipPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableInterestEntityOwnershipPercentage" xlink:to="us-gaap_VariableInterestEntityOwnershipPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_VariableInterestEntityOwnershipPercentage_lbl" xml:lang="en-US">Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_2_lbl" xml:lang="en-US">Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_2_lbl" xml:lang="en-US">Liabilities</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable" xlink:label="us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable" xlink:to="us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTitleOfIndividualAndByTypeOfDeferredCompensationTable_lbl" xml:lang="en-US">Schedule of Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits, by Title of Individual and by Type of Deferred Compensation [Table]</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems" xlink:to="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems_lbl" xml:lang="en-US">Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_PercentageIncreaseInAnnualCompensation" xlink:label="PESI_PercentageIncreaseInAnnualCompensation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PercentageIncreaseInAnnualCompensation" xlink:to="PESI_PercentageIncreaseInAnnualCompensation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_PercentageIncreaseInAnnualCompensation_lbl" xml:lang="en-US">Percentage increase in annual compensation</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage_lbl" xml:lang="en-US">Compensation arrangement with individual, cash awards, minimum, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage_lbl" xml:lang="en-US">Compensation arrangement with individual, cash awards, maximum, percentage</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount_lbl" xml:lang="en-US">Compensation arrangement with individual, cash awards, minimum, amount</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount_lbl" xml:lang="en-US">Compensation arrangement with individual, cash awards, maximum, amount</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ProvisionForRecoveryOfBadDebtReserves" xlink:to="PESI_ProvisionForRecoveryOfBadDebtReserves_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ProvisionForRecoveryOfBadDebtReserves_doc" xml:lang="en-US">Provision for recovery of bad debt reserves.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandAndSeventeenStockOptionPlanMember" xlink:to="PESI_TwoThousandAndSeventeenStockOptionPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandAndSeventeenStockOptionPlanMember_doc" xml:lang="en-US">2017 Stock Option Plan [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ConsultantMember" xlink:to="PESI_ConsultantMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ConsultantMember_doc" xml:lang="en-US">Consultant [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OptionsToPurchaseSharesOfCommonStock" xlink:to="PESI_OptionsToPurchaseSharesOfCommonStock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OptionsToPurchaseSharesOfCommonStock_doc" xml:lang="en-US">Options to purchase shares of common stock.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FergusonStockOptionMember" xlink:to="PESI_FergusonStockOptionMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FergusonStockOptionMember_doc" xml:lang="en-US">Ferguson Stock Option [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SecondMilestoneMember" xlink:to="PESI_SecondMilestoneMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SecondMilestoneMember_doc" xml:lang="en-US">Second Milestone [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ThirdMilestoneMember" xlink:to="PESI_ThirdMilestoneMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ThirdMilestoneMember_doc" xml:lang="en-US">Third Milestone [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RobertFergusonMember" xlink:to="PESI_RobertFergusonMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RobertFergusonMember_doc" xml:lang="en-US">Robert Ferguson [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EmployeeAndDirectorsMember" xlink:to="PESI_EmployeeAndDirectorsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EmployeeAndDirectorsMember_doc" xml:lang="en-US">Employee and Directors [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized" xlink:to="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_doc" xml:lang="en-US">Weighted average term for unrecognized and unvested option to be recognized.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember" xlink:to="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember_doc" xml:lang="en-US">2003 Outside Directors Stock Option Plan [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TwoThousandTwentyManagementIncentivePlanMember" xlink:to="PESI_TwoThousandTwentyManagementIncentivePlanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TwoThousandTwentyManagementIncentivePlanMember_doc" xml:lang="en-US">2020 Management Incentive Plan [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SalesOfInterestPercentage" xlink:to="PESI_SalesOfInterestPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SalesOfInterestPercentage_doc" xml:lang="en-US">Sales of interest percentage.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PFMPolandMember" xlink:to="PESI_PFMPolandMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PFMPolandMember_doc" xml:lang="en-US">PFM Poland [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_WarrantExercisableDescription" xlink:to="PESI_WarrantExercisableDescription_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_WarrantExercisableDescription_doc" xml:lang="en-US">Warrant exercisable, description.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FixedPriceMember" xlink:to="PESI_FixedPriceMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FixedPriceMember_doc" xml:lang="en-US">Fixed Price [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TreatmentMember" xlink:to="PESI_TreatmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TreatmentMember_doc" xml:lang="en-US">Information pertaining to the treatment segment.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ServicesMember" xlink:to="PESI_ServicesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ServicesMember_doc" xml:lang="en-US">Information pertaining to the services segment.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TimeandMaterialsMember" xlink:to="PESI_TimeandMaterialsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TimeandMaterialsMember_doc" xml:lang="en-US">Time and Materials [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticGovernmentMember" xlink:to="PESI_DomesticGovernmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DomesticGovernmentMember_doc" xml:lang="en-US">Domestic Government [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DomesticCommercialMember" xlink:to="PESI_DomesticCommercialMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DomesticCommercialMember_doc" xml:lang="en-US">Domestic Commercial [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignGovernmentMember" xlink:to="PESI_ForeignGovernmentMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ForeignGovernmentMember_doc" xml:lang="en-US">Foreign Government [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ForeignCommercialMember" xlink:to="PESI_ForeignCommercialMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ForeignCommercialMember_doc" xml:lang="en-US">Foreign Commercial [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_YearToDateChangesMember" xlink:to="PESI_YearToDateChangesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_YearToDateChangesMember_doc" xml:lang="en-US">Year-to-date Change [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ChangesInDeferredRevenuePercentage" xlink:to="PESI_ChangesInDeferredRevenuePercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ChangesInDeferredRevenuePercentage_doc" xml:lang="en-US">Percentage of change in deferred revenue.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LesseeOperatingAndFinanceLeasesTextBlock" xlink:to="PESI_LesseeOperatingAndFinanceLeasesTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LesseeOperatingAndFinanceLeasesTextBlock_doc" xml:lang="en-US">The entire disclosure for finance and operating leases of lessee. Includes, but is not limited to description of lease and maturity analysis of lease liability.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_StockOptionOutstandingMember" xlink:to="PESI_StockOptionOutstandingMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_StockOptionOutstandingMember_doc" xml:lang="en-US">Stock Option Outstanding [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_StockOptionExercisableMember" xlink:to="PESI_StockOptionExercisableMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_StockOptionExercisableMember_doc" xml:lang="en-US">Stock Option Exercisable [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinanceLease" xlink:to="PESI_FinanceLease_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FinanceLease_doc" xml:lang="en-US">Finance Leases.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ScheduleOfWeightedAverageLeaseTableTextBlock" xlink:to="PESI_ScheduleOfWeightedAverageLeaseTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ScheduleOfWeightedAverageLeaseTableTextBlock_doc" xml:lang="en-US">Schedule of Weighted Average Lease [Table Text Block]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock" xlink:to="PESI_OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_doc" xml:lang="en-US">Tabular disclosure of undiscounted cash flows of operating lease and finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease and finance lease liability recognized in statement of financial position.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock" xlink:to="PESI_ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock_doc" xml:lang="en-US">Schedule of supplemental cash flow and other information related to leases [Table Text Block]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SoftwareMember" xlink:to="PESI_SoftwareMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SoftwareMember_doc" xml:lang="en-US">Software [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount" xlink:to="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_doc" xml:lang="en-US">Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include: Warrant.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevolvingCreditMember" xlink:to="PESI_RevolvingCreditMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RevolvingCreditMember_doc" xml:lang="en-US">Represents the revolving credit.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Vehicles" xlink:to="PESI_Vehicles_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_Vehicles_doc" xml:lang="en-US">Vehicles.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale_doc" xml:lang="en-US">Amount Classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_Permits" xlink:to="PESI_Permits_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_Permits_doc" xml:lang="en-US">Permits.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalTransportationAccrual" xlink:to="PESI_DisposalTransportationAccrual_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalTransportationAccrual_doc" xml:lang="en-US">Disposal/transportation accrual.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleCurrent_doc" xml:lang="en-US">Liabilities of disposal group including discontinued operation including not held for sale current.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationIncludingNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Liabilities of disposal group including discontinued operation including not held for sale non current.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InterestOnFinanceLeaseWithPurchaseOption" xlink:to="PESI_InterestOnFinanceLeaseWithPurchaseOption_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_InterestOnFinanceLeaseWithPurchaseOption_doc" xml:lang="en-US">Interest on finance lease with purchase option.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInUnbilledReceivable" xlink:to="PESI_IncreaseDecreaseInUnbilledReceivable_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IncreaseDecreaseInUnbilledReceivable_doc" xml:lang="en-US">Increase decrease in unbilled receivable.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue" xlink:to="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue_doc" xml:lang="en-US">Increase decrease in accounts payable accrued expenses and unearned revenue.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EquipmentPurchaseSubjectToFinanceLease" xlink:to="PESI_EquipmentPurchaseSubjectToFinanceLease_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EquipmentPurchaseSubjectToFinanceLease_doc" xml:lang="en-US">Equipment purchase subject to finance lease.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EquipmentPurchaseSubjectToFinancing" xlink:to="PESI_EquipmentPurchaseSubjectToFinancing_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EquipmentPurchaseSubjectToFinancing_doc" xml:lang="en-US">Equipment purchase subject to financing.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock" xlink:to="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_doc" xml:lang="en-US">Disclosure of accounting policy for new accounting pronouncements that has been issued, but not yet adopted [Policy Text Block].</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" xlink:to="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_doc" xml:lang="en-US">Lessee Operating Lease Liability Payments Due After Year Four.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour" xlink:to="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour_doc" xml:lang="en-US">Finance Lease Liability Payments Due After Year Four.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_TermLoanMember" xlink:to="PESI_TermLoanMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_TermLoanMember_doc" xml:lang="en-US">Represents the term loan.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotePayableMember" xlink:to="PESI_NotePayableMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NotePayableMember_doc" xml:lang="en-US">Note Payable [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotePayableOneMember" xlink:to="PESI_NotePayableOneMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NotePayableOneMember_doc" xml:lang="en-US">Note Payable to 2023 [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_NotePayableTwoMember" xlink:to="PESI_NotePayableTwoMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_NotePayableTwoMember_doc" xml:lang="en-US">Note Payable Two [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_RevisedLoanAgreementMember" xlink:to="PESI_RevisedLoanAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_RevisedLoanAgreementMember_doc" xml:lang="en-US">The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PNCBankMember" xlink:to="PESI_PNCBankMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PNCBankMember_doc" xml:lang="en-US">The agent and lender known as PNC National Association ("PNC").</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LeanderMember" xlink:label="PESI_LeanderMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LeanderMember" xlink:to="PESI_LeanderMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LeanderMember_doc" xml:lang="en-US">Leander [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LenderMember" xlink:to="PESI_LenderMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LenderMember_doc" xml:lang="en-US">Lender [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LoanAgreementMember" xlink:to="PESI_LoanAgreementMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LoanAgreementMember_doc" xml:lang="en-US">Loan Agreement [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CapitalExpenditureMember" xlink:to="PESI_CapitalExpenditureMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CapitalExpenditureMember_doc" xml:lang="en-US">Capital Expenditure [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_UnpaidReceivablesAndUnbilledCosts" xlink:to="PESI_UnpaidReceivablesAndUnbilledCosts_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_UnpaidReceivablesAndUnbilledCosts_doc" xml:lang="en-US">Unpaid receivables and unbilled costs.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CanadianNuclearLaboratoriesLTDMember" xlink:to="PESI_CanadianNuclearLaboratoriesLTDMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CanadianNuclearLaboratoriesLTDMember_doc" xml:lang="en-US">Canadian Nuclear Laboratories LTD [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BondSecuringAmount" xlink:to="PESI_BondSecuringAmount_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_BondSecuringAmount_doc" xml:lang="en-US">Bond securing amount.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PeriodOfFiniteRiskInsurancePolicy" xlink:to="PESI_PeriodOfFiniteRiskInsurancePolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PeriodOfFiniteRiskInsurancePolicy_doc" xml:lang="en-US">Represents the period of finite risk insurance policy.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AmericanInternationalGroupIncMember" xlink:to="PESI_AmericanInternationalGroupIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AmericanInternationalGroupIncMember_doc" xml:lang="en-US">Represents information pertaining to American International Group, Inc.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MaximumAllowableCoverageOfInsurancePolicy" xlink:to="PESI_MaximumAllowableCoverageOfInsurancePolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MaximumAllowableCoverageOfInsurancePolicy_doc" xml:lang="en-US">Maximum allowable coverage of insurance policy against annual inflation and other performance and surety bond requirements.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CoverageAmountUnderPolicy" xlink:to="PESI_CoverageAmountUnderPolicy_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CoverageAmountUnderPolicy_doc" xml:lang="en-US">Coverage amount under the policy.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ThousandandThreeClosurePolicyMember" xlink:to="PESI_ThousandandThreeClosurePolicyMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ThousandandThreeClosurePolicyMember_doc" xml:lang="en-US">2003 Closure Policy [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_InsurersObligationToEntityOnTerminationOfContract" xlink:to="PESI_InsurersObligationToEntityOnTerminationOfContract_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_InsurersObligationToEntityOnTerminationOfContract_doc" xml:lang="en-US">Insurer's obligation to entity on termination of contract in terms of percentage of sinking fund.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_BondOutstanding" xlink:to="PESI_BondOutstanding_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_BondOutstanding_doc" xml:lang="en-US">The total amount of the bonds outstanding as of the reporting date.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" xlink:label="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock" xlink:to="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupsIncludingDiscontinuedOperationBalanceSheetTableTextBlock_doc" xml:lang="en-US">Tabular disclosure of information related to a disposal group for the balance sheet. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationOtherAssetsCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as other assets attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:to="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as current assets attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Amount classified as property, plant and equipment attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAssetsNotHeldForSaleNoncurrent_doc" xml:lang="en-US">Amount classified as assets attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as accounts payable attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndOtherLiabilities_doc" xml:lang="en-US">Amount classified as accounts payable and accrued liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrentEnvironmentalLiabilities_doc" xml:lang="en-US">Amount classified as environmental liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsClosureLiabilitiesNotHeldForSale_doc" xml:lang="en-US">Represents closure liabilities of discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationsEnvironmentalLiabilities_doc" xml:lang="en-US">Amount classified as environmental liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentNotHeldForSale_doc" xml:lang="en-US">Amount classified as liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale" xlink:to="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNotHeldForSale_doc" xml:lang="en-US">Amount classified as liabilities attributable to discontinued operations not held for sale.</link:label>
      <link:loc xlink:type="locator" xlink:href="pesi-20220331.xsd#PESI_OperatingSegmentsTextBlock" xlink:label="PESI_OperatingSegmentsTextBlock" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_OperatingSegmentsTextBlock" xlink:to="PESI_OperatingSegmentsTextBlock_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_OperatingSegmentsTextBlock_doc" xml:lang="en-US">Operating Segments [Text Block]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IntercompanyRevenues" xlink:to="PESI_IntercompanyRevenues_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_IntercompanyRevenues_doc" xml:lang="en-US">The intercompany revenue reported for the transaction within the fellow concerns of the entity.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_MedicalMember" xlink:to="PESI_MedicalMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_MedicalMember_doc" xml:lang="en-US">Medical [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_SegmentsTotalMember" xlink:to="PESI_SegmentsTotalMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_SegmentsTotalMember_doc" xml:lang="en-US">Information pertaining to total segments.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_EngineeringRemediationResourcesGroupIncMember" xlink:to="PESI_EngineeringRemediationResourcesGroupIncMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_EngineeringRemediationResourcesGroupIncMember_doc" xml:lang="en-US">Engineering/Remediation Resources Group, Inc [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PermaFixERRGMember" xlink:to="PESI_PermaFixERRGMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PermaFixERRGMember_doc" xml:lang="en-US">Perma-Fix ERRG [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_PercentageIncreaseInAnnualCompensation" xlink:to="PESI_PercentageIncreaseInAnnualCompensation_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_PercentageIncreaseInAnnualCompensation_doc" xml:lang="en-US">Percentage increase in annual compensation.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage_doc" xml:lang="en-US">Compensation arrangement with individual, cash awards, minimum, percentage.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CEOMember" xlink:to="PESI_CEOMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CEOMember_doc" xml:lang="en-US">CEO [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage_doc" xml:lang="en-US">Compensation arrangement with individual, cash awards, maximum, percentage.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount_doc" xml:lang="en-US">Compensation arrangement with individual, cash awards, minimum, amount.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount" xlink:to="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount_doc" xml:lang="en-US">Maximum cash incentive payable under Management Incentive Plan.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ExecutiveVicePresidentOfStrategicInitiativesMember" xlink:to="PESI_ExecutiveVicePresidentOfStrategicInitiativesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ExecutiveVicePresidentOfStrategicInitiativesMember_doc" xml:lang="en-US">EVP Of Strategic Initiatives [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember" xlink:to="PESI_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_doc" xml:lang="en-US">EVP of Nuclear And Technical Services [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_ExecutiveVicePresidentOfWasteTreatmentOperationsMember" xlink:to="PESI_ExecutiveVicePresidentOfWasteTreatmentOperationsMember_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_ExecutiveVicePresidentOfWasteTreatmentOperationsMember_doc" xml:lang="en-US">EVP of Waste Treatment Operations [Member]</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities" xlink:to="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities_doc" xml:lang="en-US">Closure liabilities.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure" xlink:to="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure_doc" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure_doc" xml:lang="en-US">Financed Portion Amount In Purchase Of  Capital Expenditure.</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrent_2_lbl" xml:lang="en-US">Assets, Current</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_2_lbl" xml:lang="en-US">Property, Plant and Equipment, Gross</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_2_lbl" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_2_lbl" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrent_2_lbl" xml:lang="en-US">Liabilities, Current</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesNoncurrent" xlink:to="us-gaap_LiabilitiesNoncurrent_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesNoncurrent_2_lbl" xml:lang="en-US">Liabilities, Noncurrent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TreasuryStockValue" xlink:to="us-gaap_TreasuryStockValue_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TreasuryStockValue_2_lbl" xml:lang="en-US">Treasury Stock, Value</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_4_lbl" xml:lang="en-US">Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_2_lbl" xml:lang="en-US">Liabilities and Equity</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets1" xlink:to="us-gaap_GainLossOnDispositionOfAssets1_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnDispositionOfAssets1_2_lbl" xml:lang="en-US">Gain (Loss) on Disposition of Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_2_lbl" xml:lang="en-US">Operating Income (Loss)</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpense_2_lbl" xml:lang="en-US">Interest Expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinancingInterestExpense" xlink:to="us-gaap_FinancingInterestExpense_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinancingInterestExpense_2_lbl" xml:lang="en-US">Financing Interest Expense</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_2_lbl" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossNetOfTax_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTax_2_lbl" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_2_lbl" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_2_lbl" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharesOutstanding_3_lbl" xml:lang="en-US">Shares, Outstanding</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnDispositionOfAssets" xlink:to="us-gaap_GainLossOnDispositionOfAssets_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GainLossOnDispositionOfAssets_2_lbl" xml:lang="en-US">Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_2_lbl" xml:lang="en-US">Increase (Decrease) in Accounts Receivable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PESI_IncreaseDecreaseInUnbilledReceivable" xlink:to="PESI_IncreaseDecreaseInUnbilledReceivable_3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PESI_IncreaseDecreaseInUnbilledReceivable_3_lbl" xml:lang="en-US">IncreaseDecreaseInUnbilledReceivable</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_2_lbl" xml:lang="en-US">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_2_lbl" 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_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_2_lbl" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLinesOfCredit" xlink:to="us-gaap_RepaymentsOfLinesOfCredit_2_lbl" xlink:type="arc" />
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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>10
<FILENAME>pesi-20220331_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801581352">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Cover - shares<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<th class="th"><div>Mar. 31, 2022</div></th>
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</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_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">587-9898<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_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common
    Stock, $.001 Par Value<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_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">PESI<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_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NASDAQ<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_dei_EntityCurrentReportingStatus', window );">Entity Current Reporting Status</a></td>
<td class="text">Yes<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_dei_EntityInteractiveDataCurrent', window );">Entity Interactive Data Current</a></td>
<td class="text">Yes<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_dei_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Accelerated Filer<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_dei_EntitySmallBusiness', window );">Entity Small Business</a></td>
<td class="text">true<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_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<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_dei_EntityShellCompany', window );">Entity Shell Company</a></td>
<td class="text">false<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_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">13,256,097<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 XBRL content amends previously-filed or accepted submission.</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_AmendmentFlag</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_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>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_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Cover page.</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_CoverAbstract</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_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_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_EntityAddressAddressLine2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 2 such as Street or Suite number</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_EntityAddressAddressLine2</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 Exchange Act<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 Exchange Act<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 Exchange Act<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 Exchange Act<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 Exchange Act<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 Exchange Act<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 Exchange Act<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">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516800913384">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Consolidated Balance Sheets - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash</a></td>
<td class="nump">$ 3,925<span></span>
</td>
<td class="nump">$ 4,440<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_us-gaap_AccountsReceivableNetCurrent', window );">Accounts receivable, net of allowance for doubtful accounts of $26 and $85, respectively</a></td>
<td class="nump">10,322<span></span>
</td>
<td class="nump">11,372<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_us-gaap_UnbilledReceivablesCurrent', window );">Unbilled receivables</a></td>
<td class="nump">5,275<span></span>
</td>
<td class="nump">8,995<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_us-gaap_InventoryNet', window );">Inventories</a></td>
<td class="nump">953<span></span>
</td>
<td class="nump">680<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_us-gaap_PrepaidExpenseAndOtherAssetsCurrent', window );">Prepaid and other assets</a></td>
<td class="nump">4,077<span></span>
</td>
<td class="nump">4,472<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_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent', window );">Current assets related to discontinued operations</a></td>
<td class="nump">27<span></span>
</td>
<td class="nump">15<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" 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">24,579<span></span>
</td>
<td class="nump">29,974<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_PropertyPlantAndEquipmentNetAbstract', window );"><strong>Property and equipment:</strong></a></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_us-gaap_BuildingsAndImprovementsGross', window );">Buildings and land</a></td>
<td class="nump">20,642<span></span>
</td>
<td class="nump">20,631<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_us-gaap_MachineryAndEquipmentGross', window );">Equipment</a></td>
<td class="nump">22,531<span></span>
</td>
<td class="nump">22,131<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_PESI_Vehicles', window );">Vehicles</a></td>
<td class="nump">449<span></span>
</td>
<td class="nump">443<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_us-gaap_LeaseholdImprovementsGross', window );">Leasehold improvements</a></td>
<td class="nump">23<span></span>
</td>
<td class="nump">23<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_us-gaap_FurnitureAndFixturesGross', window );">Office furniture and equipment</a></td>
<td class="nump">1,316<span></span>
</td>
<td class="nump">1,316<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_us-gaap_ConstructionInProgressGross', window );">Construction-in-progress</a></td>
<td class="nump">2,849<span></span>
</td>
<td class="nump">2,997<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Total property and equipment</a></td>
<td class="nump">47,810<span></span>
</td>
<td class="nump">47,541<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_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment', window );">Less accumulated depreciation</a></td>
<td class="num">(29,167)<span></span>
</td>
<td class="num">(28,932)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNet', window );">Net property and equipment</a></td>
<td class="nump">18,643<span></span>
</td>
<td class="nump">18,609<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_PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale', window );">Property and equipment related to discontinued operations</a></td>
<td class="nump">81<span></span>
</td>
<td class="nump">81<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_us-gaap_OperatingLeaseRightOfUseAsset', window );">Operating lease right-of-use assets</a></td>
<td class="nump">2,347<span></span>
</td>
<td class="nump">2,460<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_IntangibleAssetsNetExcludingGoodwillAbstract', window );"><strong>Intangibles and other long term 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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_Permits', window );">Permits</a></td>
<td class="nump">9,486<span></span>
</td>
<td class="nump">9,476<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_us-gaap_OtherIntangibleAssetsNet', window );">Other intangible assets - net</a></td>
<td class="nump">852<span></span>
</td>
<td class="nump">894<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_us-gaap_RestrictedCashNoncurrent', window );">Finite risk sinking fund (restricted cash)</a></td>
<td class="nump">11,482<span></span>
</td>
<td class="nump">11,471<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_us-gaap_DeferredIncomeTaxAssetsNet', window );">Deferred tax assets</a></td>
<td class="nump">4,263<span></span>
</td>
<td class="nump">3,527<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_us-gaap_OtherAssetsNoncurrent', window );">Other assets</a></td>
<td class="nump">443<span></span>
</td>
<td class="nump">809<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" 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">72,176<span></span>
</td>
<td class="nump">77,301<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_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="re">
<td class="pl custom" 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">10,329<span></span>
</td>
<td class="nump">11,975<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_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued expenses</a></td>
<td class="nump">5,537<span></span>
</td>
<td class="nump">5,078<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_PESI_DisposalTransportationAccrual', window );">Disposal/transportation accrual</a></td>
<td class="nump">1,162<span></span>
</td>
<td class="nump">1,065<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_us-gaap_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">2,707<span></span>
</td>
<td class="nump">5,580<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_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCosts', window );">Accrued closure costs - current</a></td>
<td class="nump">547<span></span>
</td>
<td class="nump">578<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_us-gaap_LongTermDebtCurrent', window );">Current portion of long-term debt</a></td>
<td class="nump">384<span></span>
</td>
<td class="nump">393<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_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current portion of operating lease liabilities</a></td>
<td class="nump">416<span></span>
</td>
<td class="nump">406<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_us-gaap_FinanceLeaseLiabilityCurrent', window );">Current portion of finance lease liabilities</a></td>
<td class="nump">354<span></span>
</td>
<td class="nump">333<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_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent', window );">Current liabilities related to discontinued operations</a></td>
<td class="nump">802<span></span>
</td>
<td class="nump">506<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" 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">22,238<span></span>
</td>
<td class="nump">25,914<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_us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent', window );">Accrued closure costs</a></td>
<td class="nump">6,706<span></span>
</td>
<td class="nump">6,613<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_us-gaap_LongTermDebtNoncurrent', window );">Long-term debt, less current portion</a></td>
<td class="nump">491<span></span>
</td>
<td class="nump">600<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_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Long-term operating lease liabilities, less current portion</a></td>
<td class="nump">1,921<span></span>
</td>
<td class="nump">2,029<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_us-gaap_FinanceLeaseLiabilityNoncurrent', window );">Long-term finance lease liabilities, less current portion</a></td>
<td class="nump">920<span></span>
</td>
<td class="nump">884<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_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent', window );">Long-term liabilities related to discontinued operations</a></td>
<td class="nump">408<span></span>
</td>
<td class="nump">677<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesNoncurrent', window );">Total long-term liabilities</a></td>
<td class="nump">10,446<span></span>
</td>
<td class="nump">10,803<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" 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">32,684<span></span>
</td>
<td class="nump">36,717<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_us-gaap_CommitmentsAndContingencies', window );">Commitments and Contingencies (Note 9 )</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_PreferredStockValue', window );">Preferred Stock, $.001 par value; 2,000,000 shares authorized, no shares issued and outstanding</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_CommonStockValue', window );">Common Stock, $.001 par value; 30,000,000 shares authorized; 13,242,072 and 13,222,552 shares issued, respectively; 13,234,430 and 13,214,910 shares outstanding, respectively</a></td>
<td class="nump">13<span></span>
</td>
<td class="nump">13<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_us-gaap_AdditionalPaidInCapital', window );">Additional paid-in capital</a></td>
<td class="nump">114,532<span></span>
</td>
<td class="nump">114,307<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_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Accumulated deficit</a></td>
<td class="num">(74,963)<span></span>
</td>
<td class="num">(73,620)<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_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax', window );">Accumulated other comprehensive loss</a></td>
<td class="num">(2)<span></span>
</td>
<td class="num">(28)<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_us-gaap_TreasuryStockValue', window );">Less Common Stock in treasury, at cost; 7,642 shares</a></td>
<td class="num">(88)<span></span>
</td>
<td class="num">(88)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Total stockholders&#8217; equity</a></td>
<td class="nump">39,492<span></span>
</td>
<td class="nump">40,584<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" 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">$ 72,176<span></span>
</td>
<td class="nump">$ 77,301<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 Classified as assets attributed to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer, or assets retained by the Company upon divestiture of facility.</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;">PESI_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentIncludingNotHeldForSale</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_DisposalTransportationAccrual">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Disposal/transportation accrual.</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;">PESI_DisposalTransportationAccrual</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_Permits">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Permits.</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;">PESI_Permits</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_Vehicles">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Vehicles.</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;">PESI_Vehicles</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_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 https://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 https://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 https://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 https://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_AccruedCappingClosurePostClosureAndEnvironmentalCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 estimated costs accrued as of the balance sheet date to comply with regulatory requirements pertaining to the retirement of a waste management facility (such as a landfill or waste treatment facility). Represents the portion that will be paid 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://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)(1)<br> -URI https://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<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 210.5-02.20)<br> -URI https://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_AccruedCappingClosurePostClosureAndEnvironmentalCosts</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_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 estimated amount of costs required as of the balance sheet date to comply with regulatory requirements pertaining to the retirement of a waste management facility, which will be paid after one year or beyond 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 https://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 410<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=6392692&amp;loc=d3e7535-110849<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_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent</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_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. 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 https://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_AccruedLiabilitiesCurrent</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_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 https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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(14))<br> -URI https://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_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.</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 11<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=d3e637-108580<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 45<br> -Paragraph 14<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=d3e681-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5A<br> -URI https://asc.fasb.org/extlink&amp;oid=123594809&amp;loc=SL116692626-108610<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 10A<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669646-108580<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 14A<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669686-108580<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_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax</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_AdditionalPaidInCapital">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for 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://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 https://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(30)(a)(1))<br> -URI https://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_AdditionalPaidInCapital</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 https://asc.fasb.org/extlink&amp;oid=126897435&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 https://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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-SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI https://asc.fasb.org/extlink&amp;oid=126975872&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 https://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 https://asc.fasb.org/extlink&amp;oid=126975872&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 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<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_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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI https://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 https://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 https://asc.fasb.org/extlink&amp;oid=124433192&amp;loc=SL2890621-112765<br><br>Reference 4: 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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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of 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 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 7: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent</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_BuildingsAndImprovementsGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.</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 (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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_BuildingsAndImprovementsGross</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_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 https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3044-108585<br><br>Reference 2: 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 (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<br><br>Reference 3: 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(1))<br> -URI https://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_CommitmentsAndContingencies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</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 210.5-02.25)<br> -URI https://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 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),19)<br> -URI https://asc.fasb.org/extlink&amp;oid=126734703&amp;loc=d3e572229-122910<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 210.9-03.17)<br> -URI https://asc.fasb.org/extlink&amp;oid=126897435&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_CommitmentsAndContingencies</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_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 https://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 https://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_CommonStockValue</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_ConstructionInProgressGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.</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 (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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_ConstructionInProgressGross</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_DeferredIncomeTaxAssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, 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 https://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 https://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_DeferredIncomeTaxAssetsNet</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_DeferredRevenueCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 deferred income and obligation to transfer product and 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/2009/role/commonPracticeRef<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 https://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_DeferredRevenueCurrent</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_FinanceLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, 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 https://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_FinanceLeaseLiabilityCurrent</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_FinanceLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, 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 https://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_FinanceLeaseLiabilityNoncurrent</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_FurnitureAndFixturesGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.</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 (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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_FurnitureAndFixturesGross</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_IntangibleAssetsNetExcludingGoodwillAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_IntangibleAssetsNetExcludingGoodwillAbstract</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_InventoryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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://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(6))<br> -URI https://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 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124098289&amp;loc=d3e6676-107765<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 https://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_InventoryNet</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_LeaseholdImprovementsGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 accumulated depreciation of additions or improvements to assets held under a lease 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 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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_LeaseholdImprovementsGross</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 https://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 https://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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126897435&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 https://asc.fasb.org/extlink&amp;oid=126734703&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 https://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 https://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 https://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>
<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_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 https://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 https://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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<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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<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>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation due after one year or beyond the normal operating cycle, if longer.</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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of 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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<br><br>Reference 6: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<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><strong> Name:</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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond 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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 3: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2510-110228<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent</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_LongTermDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 current. 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 210.5-02.19,20)<br> -URI https://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_LongTermDebtCurrent</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_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, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.</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(22))<br> -URI https://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>
<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_MachineryAndEquipmentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.</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 (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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_MachineryAndEquipmentGross</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_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 https://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 https://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>
<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 https://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_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://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(17))<br> -URI https://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_OtherIntangibleAssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 amortization of finite-lived and indefinite-lived intangible assets classified as 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;">us-gaap_OtherIntangibleAssetsNet</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_PreferredStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred 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://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 https://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 https://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_PreferredStockValue</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://www.xbrl.org/2009/role/commonPracticeRef<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(9))<br> -URI https://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_PropertyPlantAndEquipmentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business 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://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(13))<br> -URI https://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> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<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_PropertyPlantAndEquipmentGross</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 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI https://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 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI https://asc.fasb.org/extlink&amp;oid=126734703&amp;loc=d3e572229-122910<br><br>Reference 3: 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 https://asc.fasb.org/extlink&amp;oid=124429447&amp;loc=SL124453093-239630<br><br>Reference 4: 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 https://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_PropertyPlantAndEquipmentNetAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentNetAbstract</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_RestrictedCashNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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.</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 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -URI https://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 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI https://asc.fasb.org/extlink&amp;oid=126999549&amp;loc=SL98516268-108586<br><br>Reference 3: 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 https://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_RestrictedCashNoncurrent</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 https://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 https://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 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI https://asc.fasb.org/extlink&amp;oid=126734703&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 944<br> -SubTopic 40<br> -Section 65<br> -Paragraph 2<br> -Subparagraph (h)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=124501264&amp;loc=SL117420844-207641<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 S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI https://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<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)(i)<br> -URI https://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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is 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/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI https://asc.fasb.org/extlink&amp;oid=124436220&amp;loc=d3e21930-107793<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=120397183&amp;loc=d3e187085-122770<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 45<br> -Paragraph 23<br> -Subparagraph (b)<br> -URI 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-SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (e)(3)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 11: 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 https://asc.fasb.org/extlink&amp;oid=123596393&amp;loc=d3e14064-108612<br><br>Reference 12: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124436220&amp;loc=d3e21711-107793<br><br>Reference 13: 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 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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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</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_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 https://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 https://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 https://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>
<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>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516808666840">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Consolidated Balance Sheets (Parenthetical) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_StatementOfFinancialPositionAbstract', window );"><strong>Statement of Financial Position [Abstract]</strong></a></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_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent', window );">Accounts receivable, allowance for doubtful accounts</a></td>
<td class="nump">$ 26<span></span>
</td>
<td class="nump">$ 85<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_us-gaap_PreferredStockParOrStatedValuePerShare', window );">Preferred stock, par value</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ 0.001<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_us-gaap_PreferredStockSharesAuthorized', window );">Preferred stock, shares authorized</a></td>
<td class="nump">2,000,000<span></span>
</td>
<td class="nump">2,000,000<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_us-gaap_PreferredStockSharesIssued', window );">Preferred stock, shares issued</a></td>
<td class="nump">0<span></span>
</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_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<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_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value</a></td>
<td class="nump">$ 0.001<span></span>
</td>
<td class="nump">$ 0.001<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_us-gaap_CommonStockSharesAuthorized', window );">Common stock, shares authorized</a></td>
<td class="nump">30,000,000<span></span>
</td>
<td class="nump">30,000,000<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_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued</a></td>
<td class="nump">13,242,072<span></span>
</td>
<td class="nump">13,222,552<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_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding</a></td>
<td class="nump">13,234,430<span></span>
</td>
<td class="nump">13,214,910<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_us-gaap_TreasuryStockShares', window );">Treasury stock, shares</a></td>
<td class="nump">7,642<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_AllowanceForDoubtfulAccountsReceivableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, 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 50<br> -Paragraph 4<br> -URI https://asc.fasb.org/extlink&amp;oid=123577603&amp;loc=d3e5074-111524<br><br>Reference 2: 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 https://asc.fasb.org/extlink&amp;oid=124255206&amp;loc=SL82895884-210446<br><br>Reference 3: 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(4))<br> -URI https://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_AllowanceForDoubtfulAccountsReceivableCurrent</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 https://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>
</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_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 https://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>
</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_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 https://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 https://asc.fasb.org/extlink&amp;oid=126973232&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 https://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_PreferredStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 preferred stock nonredeemable or redeemable solely at the option of the issuer.</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(28))<br> -URI https://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: 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 13<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126973232&amp;loc=SL123496158-112644<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_PreferredStockParOrStatedValuePerShare</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_PreferredStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) 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(28))<br> -URI https://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_PreferredStockSharesAuthorized</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_PreferredStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.</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(28))<br> -URI https://asc.fasb.org/extlink&amp;oid=120391452&amp;loc=d3e13212-122682<br><br>Reference 2: 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 13<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126973232&amp;loc=SL123496158-112644<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_PreferredStockSharesIssued</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_PreferredStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.</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(28))<br> -URI https://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_PreferredStockSharesOutstanding</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_StatementOfFinancialPositionAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementOfFinancialPositionAbstract</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_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 https://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 https://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>
</div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801710072">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Operations (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_IncomeStatementAbstract', window );"><strong>Income Statement [Abstract]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenues</a></td>
<td class="nump">$ 15,915<span></span>
</td>
<td class="nump">$ 23,133<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_us-gaap_CostOfGoodsAndServicesSold', window );">Cost of goods sold</a></td>
<td class="nump">14,279<span></span>
</td>
<td class="nump">20,777<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="nump">1,636<span></span>
</td>
<td class="nump">2,356<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_us-gaap_SellingGeneralAndAdministrativeExpense', window );">Selling, general and administrative expenses</a></td>
<td class="nump">3,422<span></span>
</td>
<td class="nump">3,205<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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="nump">96<span></span>
</td>
<td class="nump">150<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_us-gaap_GainLossOnDispositionOfAssets1', window );">Loss on disposal of property and equipment</a></td>
<td class="nump">1<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Loss from operations</a></td>
<td class="num">(1,883)<span></span>
</td>
<td class="num">(999)<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_NonoperatingIncomeExpenseAbstract', window );"><strong>Other income (expense):</strong></a></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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="nump">11<span></span>
</td>
<td class="nump">18<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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="num">(35)<span></span>
</td>
<td class="num">(67)<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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="num">(13)<span></span>
</td>
<td class="num">(8)<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_us-gaap_OtherNonoperatingIncomeExpense', window );">Other</a></td>
<td class="num">(2)<span></span>
</td>
<td class="nump">1<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Loss from continuing operations before taxes</a></td>
<td class="num">(1,922)<span></span>
</td>
<td class="num">(1,055)<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax benefit</a></td>
<td class="num">(673)<span></span>
</td>
<td class="num">(17)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Loss from continuing operations, net of taxes</a></td>
<td class="num">(1,249)<span></span>
</td>
<td class="num">(1,038)<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_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Loss from discontinued operations (net of taxes) (Note 10)</a></td>
<td class="num">(94)<span></span>
</td>
<td class="num">(115)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="num">(1,343)<span></span>
</td>
<td class="num">(1,153)<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_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Net loss attributable to non-controlling interest</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(30)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" 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 attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">$ (1,343)<span></span>
</td>
<td class="num">$ (1,123)<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_EarningsPerShareBasicAbstract', window );"><strong>Net loss per common share attributable to Perma-Fix Environmental Services, Inc. stockholders - basic and diluted:</strong></a></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_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare', window );">Continuing operations</a></td>
<td class="num">$ (0.09)<span></span>
</td>
<td class="num">$ (0.08)<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_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare', window );">Discontinued operations</a></td>
<td class="num">(0.01)<span></span>
</td>
<td class="num">(0.01)<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_us-gaap_EarningsPerShareBasic', window );">Net loss per common share</a></td>
<td class="num">$ (0.10)<span></span>
</td>
<td class="num">$ (0.09)<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_WeightedAverageNumberOfSharesOutstandingAbstract', window );"><strong>Number of common shares used in computing net loss per share:</strong></a></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_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic</a></td>
<td class="nump">13,234<span></span>
</td>
<td class="nump">12,165<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_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted</a></td>
<td class="nump">13,234<span></span>
</td>
<td class="nump">12,165<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_CostOfGoodsAndServicesSold">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.</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 924<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 11.L)<br> -URI https://asc.fasb.org/extlink&amp;oid=6472922&amp;loc=d3e499488-122856<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 S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(a),(d))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&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_CostOfGoodsAndServicesSold</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_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 net income (loss) for the period per each share of common stock or unit outstanding 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 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (e)(4)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 2: 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 3<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<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 11<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 4: 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-SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(25))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868664-224227<br><br>Reference 15: 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 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1252-109256<br><br>Reference 16: 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 60B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=SL5780133-109256<br><br>Reference 17: 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(27))<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_EarningsPerShareBasic</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_EarningsPerShareBasicAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_EarningsPerShareBasicAbstract</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_FinancingInterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 element represents interest incurred for borrowed money which was used to produce goods or render 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 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&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_FinancingInterestExpense</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_GainLossOnDispositionOfAssets1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.</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 https://asc.fasb.org/extlink&amp;oid=126954810&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_GainLossOnDispositionOfAssets1</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_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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8736-108599<br><br>Reference 4: 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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_GrossProfit</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_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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126941158&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126953954&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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from continuing operations including portion attributable to the 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 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<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 (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&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 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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</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_IncomeLossFromContinuingOperationsPerBasicShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 net income (loss) from continuing operations per each share of common stock or unit outstanding 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 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<br><br>Reference 2: 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 210.7-04(19))<br> -URI https://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<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 11<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 5: 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(11))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 6: 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 11<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 7: 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 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1252-109256<br><br>Reference 8: 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 7<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1337-109256<br><br>Reference 9: 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 1<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22499-107794<br><br>Reference 10: 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 60B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=SL5780133-109256<br><br>Reference 11: 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(25))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868664-224227<br><br>Reference 12: 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(20))<br> -URI https://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 13: 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(27))<br> -URI https://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 14: 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 1<br> -Subparagraph (SX 210.5-03(13))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868656-224227<br><br>Reference 15: 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 https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22595-107794<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_IncomeLossFromContinuingOperationsPerBasicShare</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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</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 20<br> -Section 45<br> -Paragraph 3<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e957-107759<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721523-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721525-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=d3e1361-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 7: 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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569616-111683<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1012-107759<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</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_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.</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 3<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1278-109256<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(25))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868664-224227<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 60B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=SL5780133-109256<br><br>Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef<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(23))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 5: 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(19))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<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 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(12))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 7: 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 7<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1337-109256<br><br>Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef<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(27))<br> -URI https://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 9: 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(14))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&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_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare</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_IncomeStatementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_IncomeStatementAbstract</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_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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://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 https://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 https://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 https://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 https://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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126953954&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 https://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_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 interest income earned from interest bearing assets classified as 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;">us-gaap_InterestIncomeOther</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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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_NetIncomeLossAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&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 (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<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 8<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<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 (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&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 55<br> -Paragraph 4J<br> -URI https://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591551-111686<br><br>Reference 6: 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 https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI https://asc.fasb.org/extlink&amp;oid=124431353&amp;loc=SL124452729-227067<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_NetIncomeLossAttributableToNoncontrollingInterest</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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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_NonoperatingIncomeExpenseAbstract</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_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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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>
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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_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 https://asc.fasb.org/extlink&amp;oid=126953954&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_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
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-Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442526-122756<br><br>Reference 27: 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 https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442552-122756<br><br>Reference 28: 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 https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442552-122756<br><br>Reference 29: 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 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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_ProfitLoss</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 https://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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126920106&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126920106&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 https://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 https://asc.fasb.org/extlink&amp;oid=126953954&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 https://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 https://asc.fasb.org/extlink&amp;oid=126958026&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>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<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 );">- 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_WeightedAverageNumberOfSharesOutstandingAbstract</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>xbrli:stringItemType</td>
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<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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</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 https://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 https://asc.fasb.org/extlink&amp;oid=126958026&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>
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<td>us-gaap_</td>
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<td>na</td>
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<td>duration</td>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804634568">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_IncomeStatementAbstract', window );"><strong>Income Statement [Abstract]</strong></a></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_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="num">$ (1,343)<span></span>
</td>
<td class="num">$ (1,153)<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_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract', window );"><strong>Other comprehensive income:</strong></a></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_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation gain</a></td>
<td class="nump">26<span></span>
</td>
<td class="nump">20<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax', window );">Total other comprehensive income</a></td>
<td class="nump">26<span></span>
</td>
<td class="nump">20<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest', window );">Comprehensive loss</a></td>
<td class="num">(1,317)<span></span>
</td>
<td class="num">(1,133)<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_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest', window );">Comprehensive loss attributable to non-controlling interest</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(30)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Comprehensive loss attributable to Perma-Fix Environmental Services, Inc. stockholders</a></td>
<td class="num">$ (1,317)<span></span>
</td>
<td class="num">$ (1,103)<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 https://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 https://asc.fasb.org/extlink&amp;oid=126953954&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 https://asc.fasb.org/extlink&amp;oid=126968391&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 https://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 https://asc.fasb.org/extlink&amp;oid=126968391&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 https://asc.fasb.org/extlink&amp;oid=126968391&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>
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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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<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>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. 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 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669625-108580<br><br>Reference 2: 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(21))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 3: 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(25))<br> -URI https://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI https://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591552-111686<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 1A<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669619-108580<br><br>Reference 6: 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 21<br> -URI https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4613674-111683<br><br>Reference 7: 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(23))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868664-224227<br><br>Reference 8: 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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569643-111683<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_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest</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>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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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 after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI https://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591552-111686<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 45<br> -Paragraph 1A<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(20))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 4: 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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569616-111683<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 https://asc.fasb.org/extlink&amp;oid=126968391&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 S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(22))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868664-224227<br><br>Reference 7: 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(24))<br> -URI https://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_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest</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> Balance Type:</strong></td>
<td>credit</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_IncomeStatementAbstract</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>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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</tr>
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</div></td></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 https://asc.fasb.org/extlink&amp;oid=126968391&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>
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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 after tax and reclassification adjustments of other comprehensive income (loss).</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_OtherComprehensiveIncomeLossNetOfTax</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract">
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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>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</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_ProfitLoss</td>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801067864">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Common Stock [Member]</div></th>
<th class="th"><div>Additional Paid-in Capital [Member]</div></th>
<th class="th"><div>Treasury Stock [Member]</div></th>
<th class="th"><div>AOCI Attributable to Parent [Member]</div></th>
<th class="th"><div>Noncontrolling Interest [Member]</div></th>
<th class="th"><div>Retained Earnings [Member]</div></th>
<th class="th"><div>Total</div></th>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Beginning balance, value at Dec. 31, 2020</a></td>
<td class="nump">$ 12<span></span>
</td>
<td class="nump">$ 108,931<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
<td class="num">$ (207)<span></span>
</td>
<td class="num">$ (1,742)<span></span>
</td>
<td class="num">$ (74,455)<span></span>
</td>
<td class="nump">$ 32,451<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl custom" 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, shares at Dec. 31, 2020</a></td>
<td class="nump">12,161,539<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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(30)<span></span>
</td>
<td class="num">(1,123)<span></span>
</td>
<td class="num">(1,153)<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_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">20<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">20<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_us-gaap_StockIssuedDuringPeriodValueIssuedForServices', window );">Issuance of Common Stock for services</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">79<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">79<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_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Issuance of Common Stock for services, shares</a></td>
<td class="nump">11,837<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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-Based Compensation</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">45<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">45<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Ending balance, value at Mar. 31, 2021</a></td>
<td class="nump">$ 12<span></span>
</td>
<td class="nump">109,055<span></span>
</td>
<td class="num">(88)<span></span>
</td>
<td class="num">(187)<span></span>
</td>
<td class="num">(1,772)<span></span>
</td>
<td class="num">(75,578)<span></span>
</td>
<td class="nump">31,442<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl custom" 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, shares at Mar. 31, 2021</a></td>
<td class="nump">12,173,376<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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Beginning balance, value at Dec. 31, 2021</a></td>
<td class="nump">$ 13<span></span>
</td>
<td class="nump">114,307<span></span>
</td>
<td class="num">(88)<span></span>
</td>
<td class="num">(28)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(73,620)<span></span>
</td>
<td class="nump">40,584<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl custom" 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, shares at Dec. 31, 2021</a></td>
<td class="nump">13,222,552<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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(1,343)<span></span>
</td>
<td class="num">(1,343)<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_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax', window );">Foreign currency translation</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">26<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">26<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_us-gaap_StockIssuedDuringPeriodValueIssuedForServices', window );">Issuance of Common Stock for services</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">123<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">123<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_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Issuance of Common Stock for services, shares</a></td>
<td class="nump">19,520<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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue', window );">Stock-Based Compensation</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">102<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">102<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Ending balance, value at Mar. 31, 2022</a></td>
<td class="nump">$ 13<span></span>
</td>
<td class="nump">$ 114,532<span></span>
</td>
<td class="num">$ (88)<span></span>
</td>
<td class="num">$ (2)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">$ (74,963)<span></span>
</td>
<td class="nump">$ 39,492<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl custom" 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, shares at Mar. 31, 2022</a></td>
<td class="nump">13,242,072<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>
</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 https://asc.fasb.org/extlink&amp;oid=126964447&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 20<br> -Section 55<br> -Paragraph 13<br> -URI https://asc.fasb.org/extlink&amp;oid=126964447&amp;loc=d3e11178-113907<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 35<br> -Paragraph 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126961718&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_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 https://asc.fasb.org/extlink&amp;oid=126968391&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>
<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_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 consolidated profit or loss for the period, net of income taxes, including the portion attributable to the 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 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI https://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<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 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669619-108580<br><br>Reference 3: 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 1A<br> -Subparagraph (a)(1)<br> -URI 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-Subparagraph (SX 210.13-01(a)(4)(iii)(A))<br> -URI https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442526-122756<br><br>Reference 27: 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 https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442552-122756<br><br>Reference 28: 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 https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442552-122756<br><br>Reference 29: 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 https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442526-122756<br><br>Reference 30: 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 1A<br> -Subparagraph (c)(1)<br> -URI https://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<br><br>Reference 31: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI https://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591551-111686<br><br>Reference 32: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI https://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591552-111686<br><br>Reference 33: 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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_ProfitLoss</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>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
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</div></td></tr>
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<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>
<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>
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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>
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</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.</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_StockIssuedDuringPeriodSharesIssuedForServices</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>
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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>
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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_StockIssuedDuringPeriodValueIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.</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_StockIssuedDuringPeriodValueIssuedForServices</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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</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>
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<SEQUENCE>17
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516808721352">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Consolidated Statements of Cash Flows (Unaudited) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Cash flows from operating activities:</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProfitLoss', window );">Net loss</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">$ (1,343,000)<span></span>
</td>
<td class="num">$ (1,153,000)<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_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Less: loss from discontinued operations, net of taxes (Note 10)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(94,000)<span></span>
</td>
<td class="num">(115,000)<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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Loss from continuing operations, net of taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,249,000)<span></span>
</td>
<td class="num">(1,038,000)<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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile loss from continuing operations to cash provided by (used in) operating activities :</strong></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>
</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_us-gaap_DepreciationDepletionAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">456,000<span></span>
</td>
<td class="nump">400,000<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_PESI_InterestOnFinanceLeaseWithPurchaseOption', window );">Interest on finance lease with purchase option</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="nump">2,000<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_us-gaap_AmortizationOfFinancingCostsAndDiscounts', window );">Amortization of debt issuance costs</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">13,000<span></span>
</td>
<td class="nump">8,000<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_us-gaap_DeferredIncomeTaxExpenseBenefit', window );">Deferred tax benefit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(673,000)<span></span>
</td>
<td class="text"> <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_PESI_ProvisionForRecoveryOfBadDebtReserves', window );">Recovery of bad debt reserves</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(55,000)<span></span>
</td>
<td class="num">(17,000)<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_us-gaap_GainLossOnDispositionOfAssets', window );">Loss on disposal of plant, property, and equipment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,000<span></span>
</td>
<td class="text"> <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_us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims', window );">Issuance of common stock for services</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">123,000<span></span>
</td>
<td class="nump">79,000<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_us-gaap_ShareBasedCompensation', window );">Stock-based compensation</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">102,000<span></span>
</td>
<td class="nump">45,000<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_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in operating assets and liabilities of continuing operations:</strong></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>
</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_us-gaap_IncreaseDecreaseInAccountsReceivable', window );">Accounts receivable</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,105,000<span></span>
</td>
<td class="num">(10,445,000)<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_PESI_IncreaseDecreaseInUnbilledReceivable', window );">Unbilled receivables</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">3,720,000<span></span>
</td>
<td class="nump">5,224,000<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_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets', window );">Prepaid expenses, inventories and other assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,097,000<span></span>
</td>
<td class="nump">557,000<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_PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue', window );">Accounts payable, accrued expenses and unearned revenue</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(4,492,000)<span></span>
</td>
<td class="num">(1,270,000)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations', window );">Cash provided by (used in) continuing operations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">148,000<span></span>
</td>
<td class="num">(6,455,000)<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_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations', window );">Cash used in discontinued operations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(142,000)<span></span>
</td>
<td class="num">(149,000)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Cash provided by (used in) operating activities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">6,000<span></span>
</td>
<td class="num">(6,604,000)<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_NetCashProvidedByUsedInInvestingActivitiesAbstract', window );"><strong>Cash flows from investing activities:</strong></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>
</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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Purchases of property and equipment</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="num">(345,000)<span></span>
</td>
<td class="num">(361,000)<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_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment', window );">Proceeds from sale of plant, property, and equipment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">24,000<span></span>
</td>
<td class="nump">1,000<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Cash used in investing activities of continuing operations</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(321,000)<span></span>
</td>
<td class="num">(360,000)<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_NetCashProvidedByUsedInFinancingActivitiesAbstract', window );"><strong>Cash flows from financing activities:</strong></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>
</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_us-gaap_RepaymentsOfLinesOfCredit', window );">Repayments of revolving credit borrowings</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(17,494,000)<span></span>
</td>
<td class="num">(14,780,000)<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_us-gaap_ProceedsFromLinesOfCredit', window );">Borrowing on revolving credit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">17,494,000<span></span>
</td>
<td class="nump">14,780,000<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_us-gaap_FinanceLeasePrincipalPayments', window );">Principal repayments of finance lease liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(58,000)<span></span>
</td>
<td class="num">(114,000)<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_us-gaap_RepaymentsOfLongTermDebt', window );">Principal repayments of long term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(110,000)<span></span>
</td>
<td class="num">(109,000)<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_us-gaap_PaymentsOfDebtIssuanceCosts', window );">Payment of debt issuance costs</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(21,000)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Cash used in financing activities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(189,000)<span></span>
</td>
<td class="num">(223,000)<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_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations', window );">Effect of exchange rate changes on cash</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="num">(6,000)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">(Decrease) increase in cash and finite risk sinking fund (restricted cash)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(504,000)<span></span>
</td>
<td class="num">(7,193,000)<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_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations', window );">Cash and finite risk sinking fund (restricted cash) at beginning of period</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">15,911,000<span></span>
</td>
<td class="nump">19,370,000<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_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations', window );">Cash and finite risk sinking fund (restricted cash) at end of period</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">15,407,000<span></span>
</td>
<td class="nump">12,177,000<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_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental disclosure:</strong></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>
</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_us-gaap_InterestPaidNet', window );">Interest paid</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">34,000<span></span>
</td>
<td class="nump">54,000<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_us-gaap_IncomeTaxesPaid', window );">Income taxes paid</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">6,000<span></span>
</td>
<td class="text"> <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_NoncashInvestingAndFinancingItemsAbstract', window );"><strong>Non-cash investing and financing activities:</strong></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>
</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_PESI_EquipmentPurchaseSubjectToFinanceLease', window );">Equipment purchase subject to finance lease</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">114,000<span></span>
</td>
<td class="text"> <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_PESI_EquipmentPurchaseSubjectToFinancing', window );">Equipment purchase subject to financing</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="nump">$ 29,000<span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><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">Net of financed
amount of $<span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure">114,000</span> and $<span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg">29,000</span> for the three months ended March 31, 2022 and 2021, respectively.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_EquipmentPurchaseSubjectToFinanceLease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Equipment purchase subject to finance lease.</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;">PESI_EquipmentPurchaseSubjectToFinanceLease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_EquipmentPurchaseSubjectToFinancing">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Equipment purchase subject to financing.</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;">PESI_EquipmentPurchaseSubjectToFinancing</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Increase decrease in accounts payable accrued expenses and unearned revenue.</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;">PESI_IncreaseDecreaseInAccountsPayableAccruedExpensesAndUnearnedRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_IncreaseDecreaseInUnbilledReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Increase decrease in unbilled receivable.</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;">PESI_IncreaseDecreaseInUnbilledReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_InterestOnFinanceLeaseWithPurchaseOption">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Interest on finance lease with purchase option.</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;">PESI_InterestOnFinanceLeaseWithPurchaseOption</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_ProvisionForRecoveryOfBadDebtReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Provision for recovery of bad debt reserves.</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;">PESI_ProvisionForRecoveryOfBadDebtReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_AmortizationOfFinancingCostsAndDiscounts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 amortization expense attributable to debt discount (premium) and debt issuance costs.</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 https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69E<br> -URI https://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495743-112612<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI https://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1F<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495355-112611<br><br>Reference 5: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69F<br> -URI https://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495745-112612<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_AmortizationOfFinancingCostsAndDiscounts</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_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 https://asc.fasb.org/extlink&amp;oid=126999549&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 https://asc.fasb.org/extlink&amp;oid=126954810&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 https://asc.fasb.org/extlink&amp;oid=126954810&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 https://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 https://asc.fasb.org/extlink&amp;oid=126954810&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>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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) of operating activities of 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 24<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&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 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (c)(1)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<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_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations</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_DeferredIncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.</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 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.7)<br> -URI https://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 S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.1)<br> -URI https://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 3: 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(h)(1)(Note 1))<br> -URI https://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 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.Fact.2)<br> -URI https://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<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 28<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<br><br>Reference 6: 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 9<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32639-109319<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_DeferredIncomeTaxExpenseBenefit</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_DepreciationDepletionAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the 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 22<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8736-108599<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 https://asc.fasb.org/extlink&amp;oid=126954810&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_DepreciationDepletionAndAmortization</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_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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; 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://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI https://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_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations</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_FinanceLeasePrincipalPayments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 for principal payment on 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 45<br> -Paragraph 5<br> -Subparagraph (a)<br> -URI https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeasePrincipalPayments</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_GainLossOnDispositionOfAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, excluding 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://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 https://asc.fasb.org/extlink&amp;oid=126954810&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 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2443-110228<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<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_GainLossOnDispositionOfAssets</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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from continuing operations including portion attributable to the 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 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<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 (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&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 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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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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569616-111683<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)(i))<br> -URI https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442552-122756<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 16: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards 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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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</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 20<br> -Section 45<br> -Paragraph 3<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e957-107759<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721523-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721525-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=d3e1361-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 7: 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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569616-111683<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1012-107759<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</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_IncomeTaxesPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.</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 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126999549&amp;loc=d3e4297-108586<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 25<br> -Subparagraph (f)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3536-108585<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_IncomeTaxesPaid</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>
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</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 https://asc.fasb.org/extlink&amp;oid=126954810&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_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 https://asc.fasb.org/extlink&amp;oid=126954810&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_InterestPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.</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 50<br> -Paragraph 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126999549&amp;loc=d3e4297-108586<br><br>Reference 2: 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 17<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3367-108585<br><br>Reference 3: 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 25<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3536-108585<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_InterestPaidNet</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_IssuanceOfStockAndWarrantsForServicesOrClaims">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 compensation granted to nonemployees as payment for services rendered or acknowledged claims.</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 https://asc.fasb.org/extlink&amp;oid=126954810&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_IssuanceOfStockAndWarrantsForServicesOrClaims</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_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 https://asc.fasb.org/extlink&amp;oid=126954810&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 https://asc.fasb.org/extlink&amp;oid=126954810&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 https://asc.fasb.org/extlink&amp;oid=126954810&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 https://asc.fasb.org/extlink&amp;oid=126954810&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 https://asc.fasb.org/extlink&amp;oid=126954810&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_NetCashProvidedByUsedInOperatingActivities</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>
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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_NetCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>
</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>
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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>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, excluding 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 24<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&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 25<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3536-108585<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 https://asc.fasb.org/extlink&amp;oid=126954810&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_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations</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_NoncashInvestingAndFinancingItemsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_NoncashInvestingAndFinancingItemsAbstract</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>
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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>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfDebtIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.</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 (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&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_PaymentsOfDebtIssuanceCosts</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_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</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 13<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3213-108585<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_PaymentsToAcquirePropertyPlantAndEquipment</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_ProceedsFromLinesOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.</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 https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3255-108585<br><br>Reference 2: 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 https://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_ProceedsFromLinesOfCredit</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_ProceedsFromSaleOfPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.</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 12<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3179-108585<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_ProceedsFromSaleOfPropertyPlantAndEquipment</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_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 consolidated profit or loss for the period, net of income taxes, including the portion attributable to the 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 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI https://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<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 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&amp;loc=SL7669619-108580<br><br>Reference 3: 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 1A<br> -Subparagraph (a)(1)<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_ProfitLoss</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_RepaymentsOfLinesOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.</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 (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3291-108585<br><br>Reference 2: 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 https://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_RepaymentsOfLinesOfCredit</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_RepaymentsOfLongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 debt initially having maturity due after one year or beyond 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 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3291-108585<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804500088">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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    </b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_820_zt3VR8oqMUg2">Basis
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
consolidated financial statements included herein have been prepared by the Company (which may be referred to as we, us or our), without
an audit, pursuant to the rules and regulations of the Securities and Exchange Commission (&#8220;the Commission&#8221;). Certain information
and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in
the United States of America (&#8220;U.S. GAAP&#8221;) have been condensed or omitted pursuant to such rules and regulations, although
the Company believes the disclosures which are made are adequate to make the information presented not misleading. Further, the consolidated
financial statements reflect, in the opinion of management, all adjustments (which include only normal recurring adjustments) necessary
to present fairly the financial position and results of operations as of and for the periods indicated. The results of operations for
the three months ended March 31, 2022 are not necessarily indicative of results to be expected for the fiscal year ending December 31,
2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company suggests that these consolidated financial statements be read in conjunction with the consolidated financial statements and the
notes thereto included in the Company&#8217;s Annual Report on Form 10-K for the year ended December 31, 2021.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
consolidated financial statements include the accounts of our wholly-owned subsidiaries and the account of a variable interest entity
(&#8220;VIE&#8221;), Perma-Fix ERRG for which we are the primary beneficiary (See &#8220;Note 13 - VIE&#8221; for a discussion of this
VIE). The consolidated financial statements for 2021 also included the accounts of the Company&#8217;s majority-owned Polish subsidiary,
Perma-Fix Medical S.A (&#8220;PFM Poland&#8221;) and PFM Poland&#8217;s wholly-owned subsidiary, Perma-Fix Medical Corporation (&#8220;PFMC&#8221;),
which comprised of the Company&#8217;s Medical Segment. As previously discussed, the Company made the strategic decision to cease all
research and development (&#8220;R&amp;D&#8221;) activities under the Medical Segment and sold <span id="xdx_907_ecustom--SalesOfInterestPercentage_pid_dp_uPure_c20210101__20211231__srt--ConsolidatedEntitiesAxis__custom--PFMPolandMember_zslS59CNMYz1" title="Sale of interest in subsidiaries">100</span>% of its interest in PFM Poland in
December 2021. As a condition precent to the sale of PFM Poland, the Company acquired PFMC after its conversion to a Delaware limited
liability company. As a result of the sale of PFM Poland, the Company deconsolidated PFM Poland from its consolidated financial statements
in December 2021. The Company&#8217;s Medical Segment had not generated any revenue.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Information
for the Medical Segment is presented for the quarter ending March 31, 2021. The Medical Segment was disposed of as of December 31, 2021
and is not relevant for the quarter ending March 31, 2022. Prior period segment information is not required to be restated for the disposal
of the segment.</span></p>

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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">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</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 235<br> -URI https://asc.fasb.org/topic&amp;trid=2122369<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -URI https://asc.fasb.org/topic&amp;trid=2122149<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -URI https://asc.fasb.org/topic&amp;trid=2134479<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804462360">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_82B_z0SiOHBpkG1f">Summary
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
accounting policies are as set forth in the notes to the December 31, 2021 consolidated financial statements referred to above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0">&#160;</p>

<p id="xdx_84E_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zlFMS3erTZeb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_864_zYjYieBmuiB4">Recently
Adopted Accounting Standards</span></b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
May 2021, the Financial Accounting Standards Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;) No. 2021-04,
&#8220;Earnings Per Share (Topic 206), Debt-Modifications and Extinguishments (Subtopic 470-50), Compensation-Stock Compensation (Topic
718), and Derivatives and Hedging-Contracts in Entity&#8217;s Own Equity (Subtopic 815-40): Issuer&#8217;s Accounting for Certain Modifications
or Exchanges of Freestanding Equity-Classified Written Call Options (a consensus of the FASB Emerging Issues Task Force).&#8221; ASU
2021-04 addresses issuer&#8217;s accounting for certain modifications or exchanges of freestanding equity-classified written call options.
This ASU is effective for all entities, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal
years. Early adoption is permitted. The adoption of this ASU by the Company effective January 1, 2022 did not have a material impact
on its financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_843_ecustom--NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_z1olpfQeEYU8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_867_zag1M9rPevX6">Recently
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
June 2016, the FASB issued ASU No. 2016-13, &#8220;Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments,&#8221;
and various subsequent amendments to the initial guidance (collectively, &#8220;Topic 326&#8221;). Topic 326 introduces an approach,
based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale
debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most
financial assets measured at amortized cost and certain other instruments, including trade and other receivables and loans. Entities
are required to apply the standard&#8217;s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the
first reporting period in which the guidance is adopted. In November 2019, FASB issued ASU 2019-10, &#8220;Financial Instruments &#8211;
Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842),&#8221; which defers the effective date of ASU
2016-13 for public companies that are considered smaller reporting companies (&#8220;SRC&#8221;) as defined by the Commission to fiscal
years beginning after December 15, 2022, including interim periods within those fiscal years. These ASUs are effective January 1, 2023
for the Company as an SRC. Under new guidance issued by the Commission in March 2020, the Company continues to qualify as a smaller reporting
company but became an accelerated filer starting with its 2021 Form 10-K and all subsequent filings. The Company is currently evaluating
the impact of these ASU on its consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
March 2020, the FASB issued ASU 2020-04, &#8220;Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform
on Financial Reporting,&#8221; which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships
and other transactions affected by the discontinuation of the London Interbank Offered Rate (&#8220;LIBOR&#8221;) or by another reference
rate expected to be discontinued because of reference rate reform. The guidance was effective beginning March 12, 2020 and can be applied
prospectively through December 31, 2022. In January 2021, the FASB issued ASU No. 2021-01, &#8220;Reference Rate Reform (Topic 848):
Scope,&#8221; which clarified the scope and application of the original guidance. The Company plans to adopt both ASUs when LIBOR is
discontinued. The Company is currently evaluating the impact of the new ASUs on its condensed consolidated financial statements. As of
the date of this report, the Company has determined that only its obligations under the credit facility as described in &#8220;Note 8
&#8211; Long Term Debt would be impacted by these ASUs. The Company&#8217;s obligations under
its credit facility permit for payment of annual rate of interests on its obligations using prime rate or LIBOR.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
August 2020, the FASB issued ASU No. 2020-06, &#8220;Debt &#8211; Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives
and Hedging &#8211; Contracts in Entity&#8217;s Own Equity.&#8221; ASU 2020-06 simplifies the accounting for convertible instruments
by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts
in an entity&#8217;s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06
is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as an
SRC. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within
those fiscal years. The Company is currently evaluating the impact of this ASU on its consolidated financial statements and disclosures.</span></p>

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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804488712">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue<br></strong></div></th>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>3.</b></span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Disaggregation
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
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obligations within our Treatment and Services Segments results in the recognition of our revenue primarily over time. The following tables
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p id="xdx_8A8_zeGmJ0vV3emd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Contract
Liabilities</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_89D_eus-gaap--ContractWithCustomerAssetAndLiabilityTableTextBlock_zggie9TBzpJi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s contract liabilities consist of deferred revenues which represent advance payment from customers in advance of the completion
of our performance obligation. The following table represents changes in our contract liabilities balances:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span><span id="xdx_8B6_zZsYp0Benrya" style="display: none">Schedule Of Contract   Liabilities</span></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">(In thousands)</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-weight: bold; text-align: left">Contract liabilities</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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<p id="xdx_8AB_zAntKcPfO4wf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
decrease was primarily due to revenue recognized in connection with a Services Segment contract. The decrease was also attributed to
more processing of Treatment Segment&#8217;s backlog due to continued delays in waste receipts from certain customers from the impact
of COVID-19.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the three months ended March 31, 2022 and 2021, the Company recognized revenue of $<span id="xdx_908_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_pp0p0_c20220101__20220331_z7ZgCEwb7Px1" title="Revenue recognized">3,521,000</span> and $<span id="xdx_90A_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_pp0p0_c20210101__20210331_zbceIPuO4aDe" title="Revenue recognized">4,311,000</span>, respectively, related to
untreated waste that was in the Company&#8217;s control as of the beginning of each respective year. Revenue recognized in each period
related to performance obligations satisfied within the respective period.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Remaining
Performance Obligations</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company applies the practical expedient in paragraph 606-10-50-14 and does not disclose information about remaining performance obligations
that have original expected durations of one year or less.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Within
our Services Segment, there are service contracts which provide that the Company has a right to consideration from a customer in an amount
that corresponds directly with the value to the customer of our performance completed to date. For those contracts, the Company has utilized
the practical expedient in ASC 606-10-55-18, which allows the Company to recognize revenue in the amount for which we have the right
to invoice; accordingly, the Company does not disclose the value of remaining performance obligations for those contracts.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s contracts and subcontracts relating to activities at governmental sites generally allow for termination for convenience
at any time at the government&#8217;s option without payment of a substantial penalty. The Company does not disclose remaining performance
obligations on these contracts.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<span></span>
</td>
</tr>
</table>
<div style="display: none;">
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<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.</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> -URI https://asc.fasb.org/topic&amp;trid=49130388<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 50<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130551-203045<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 13<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130556-203045<br><br>Reference 4: 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 12<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130554-203045<br><br>Reference 5: 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 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130550-203045<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 12<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130554-203045<br><br>Reference 7: 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 12<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130554-203045<br><br>Reference 8: 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 12<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130554-203045<br><br>Reference 9: 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 15<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130558-203045<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 12<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126920106&amp;loc=SL49130554-203045<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804395176">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_PESI_DisclosureLeasesAbstract', window );"><strong>Leases</strong></a></td>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_LesseeOperatingAndFinanceLeasesTextBlock', window );">Leases</a></td>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>4.</b></span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
the inception of an arrangement, the Company determines if an arrangement is, or contains, a lease based on facts and circumstances present
in that arrangement. Lease classifications, recognition, and measurement are then determined at the lease commencement date.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s operating lease right-of-use (&#8220;ROU&#8221;) assets and operating lease liabilities represent primarily leases for
office and warehouse spaces used to conduct our business. Finance leases consist primarily of processing and transport equipment used
by our facilities&#8217; operations.</span></p>

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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="padding-left: 10pt; text-align: left">Amortization of ROU assets</td><td>&#160;</td>
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    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Interest on lease liability</td><td style="padding-bottom: 1.5pt">&#160;</td>
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<p id="xdx_8A7_zJ2Vazyiajeh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B0_zfV5GUIU0Q0j" style="display: none">Schedule Of Weighted Average Lease</span></span></span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="width: 60%; text-align: left">Weighted average remaining lease terms (years)</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 16%; text-align: right"><span id="xdx_90A_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zx0pgyEun3F3" title="Operating leases, weighted average remaining lease terms (years)">7.8</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Weighted average discount rate</td><td>&#160;</td>
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  </table>

<p id="xdx_8A3_z3C9cYcSGMF1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_898_ecustom--OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_znafRXLUOFpk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2022 to the operating and finance
lease liabilities recorded on the balance sheet (in thousands):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span><span id="xdx_8B5_zsrRKozKOYkl" style="display: none">Schedule Of Operating And Finance Lease Liability Maturity</span></span>&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font-size: 11pt; text-align: right">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: right">2022 (Remaining)</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_znzuHA5YDdU8" style="width: 16%; text-align: right" title="Finance Leases 2022">315</td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2023</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zXvD26aAJZ0e" style="text-align: right" title="Operating Leases 2023">560</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">2024</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zIjOyYXMjBH9" style="text-align: right" title="Finance Leases 2024">323</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2025</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zFxYKUIridpg" style="text-align: right" title="Finance Leases 2025">300</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">2026</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2027 and thereafter</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">Total undiscounted lease payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_zwV3XZJqjire" style="text-align: right" title="Operating Leases Total undiscounted lease payments">2,999</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--FinanceLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_ztEka6B65A7c" style="text-align: right" title="Finance Leases Total undiscounted lease payments">1,456</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">Less: Imputed interest</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zCYzTZfO5lai" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases Less: Imputed interest">(662</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--FinanceLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zEBDItBDIfc2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Finance Leases Less: Imputed interest">(182</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt; text-align: right">Present value of lease payments</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98F_eus-gaap--OperatingLeaseLiability_iI_pn3n3_c20220331_z84OoepTK8N1" style="border-bottom: Black 2.5pt double; text-align: right" title="Operating Leases Present value of lease payments">2,337</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--FinanceLeaseLiability_iI_pn3n3_c20220331_zUrfRlxVhUKj" style="border-bottom: Black 2.5pt double; text-align: right" title="Finance Leases Present value of lease payments">1,274</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0pt; text-align: left">Current portion of operating lease obligations</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_c20220331_z8gTa0fgsguj" style="text-align: right" title="Current portion of operating lease obligations">416</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">&#8212;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0pt; text-align: left">Long-term operating lease obligations, less current portion</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z2ohNXwmiEed" style="text-align: right" title="Long-term operating lease obligations, less current portion">1,921</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">&#8212;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0pt; text-align: left">Current portion of finance lease obligations</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">&#8212;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--FinanceLeaseLiabilityCurrent_iI_pn3n3_c20220331_zmbeoaOaquh4" style="text-align: right" title="Current portion of finance lease obligations">354</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0pt; text-align: left">Long-term finance lease obligations, less current portion</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">&#8212;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z6OAv34e1tE8" style="text-align: right" title="Long-term finance lease obligations, less current portion">920</td><td style="text-align: left">&#160;</td></tr>
  </table>


<p id="xdx_8A8_z5hSjJQ73l52" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_89D_ecustom--ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock_zISe4Tmokw69" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Supplemental
cash flow and other information related to our leases were as follows (in thousands):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span><span id="xdx_8BB_zU3mxFMNXfbg" style="display: none">Schedule Of Supplemental Cash Flow And Other Information Related To Leases</span></span>&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="display: none; vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="2" id="xdx_493_20220101__20220331_zQiAGdyMLB0h" style="border-bottom: Black 1.5pt solid; text-align: center">2022</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" id="xdx_495_20210101__20210331_zgFJ4jiBU6fe" style="border-bottom: Black 1.5pt solid; text-align: center">2021</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="6" style="text-align: center">Three Months Ended</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center">March 31,</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2022</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2021</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Cash paid for amounts included in the measurement of lease liabilities:</td><td>&#160;</td>
    <td colspan="2">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2">&#160;</td><td>&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--OperatingLeasePayments_pn3n3_z0sAAebByHV6" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; width: 60%; text-align: left">Operating cash flow from operating leases</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">143</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">101</td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr id="xdx_400_eus-gaap--FinanceLeaseInterestExpense_pn3n3_zh6w5up7BYql" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left">Operating cash flow from finance leases</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">11</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">19</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40D_eus-gaap--FinanceLeasePrincipalPayments_pn3n3_zIufe2dC5xpg" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Financing cash flow from finance leases</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">58</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">114</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">ROU assets obtained in exchange for lease obligations for:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_406_eus-gaap--RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_pn3n3_zR8g5yrgpAag" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left">Finance liabilities</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">147</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0802">&#8212;</span></span></td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_pn3n3_z7PFt6jJ6Zv3" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left">Operating liabilities</td><td>&#160;</td>
    <td style="text-align: left">$ </td><td style="text-align: right"> <span style="-sec-ix-hidden: xdx2ixbrl0804">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"> <span style="-sec-ix-hidden: xdx2ixbrl0805">&#8212;</span></span></td><td style="text-align: left">&#160;</td></tr>
  </table>

<p id="xdx_8AB_zjXXEHXN626b" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&#160;</p>

<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisclosureLeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">PESI_DisclosureLeasesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_LesseeOperatingAndFinanceLeasesTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 entire disclosure for finance and operating leases of lessee. Includes, but is not limited to description of lease and maturity analysis of lease liability.</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;">PESI_LesseeOperatingAndFinanceLeasesTextBlock</td>
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<td>duration</td>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516808812840">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Intangible Assets<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2022</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_GoodwillAndIntangibleAssetsDisclosureAbstract', window );"><strong>Goodwill and Intangible Assets Disclosure [Abstract]</strong></a></td>
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<p id="xdx_8A6_zgIQp2T4fAfh" style="margin-top: 0; margin-bottom: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
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which are being amortized using an accelerated method.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_89D_eus-gaap--ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_z2NYcw3Aq5hi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table summarizes the expected amortization over the next five years for our definite-lived intangible assets:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B6_ziA8jFzaPSgl" style="display: none">Schedule Of Finite Lived Intangible Assets, Future Amortization Expense</span></span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 40%; margin-right: auto">
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    <td>&#160;</td><td>&#160;</td>
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    <td colspan="2" style="text-align: center">&#160;&#160;</td><td>&#160;</td></tr>
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    <td style="width: 70%; font-weight: normal; font-style: normal; text-align: left">2022 (Remaining)</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 26%; text-align: right">164</td><td style="width: 1%; text-align: left">&#160;</td></tr>
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    <td style="text-align: left">2023</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">178</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">2024</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">46</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">11</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">2026</td><td>&#160;</td>
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<p id="xdx_8A1_zevDpGjeSsMd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 1.75in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amortization
expenses relating to the definite-lived intangible assets as discussed above were $<span id="xdx_909_eus-gaap--AmortizationOfIntangibleAssets_pp0p0_c20220101__20220331_zjeiYzQYFfh4" title="Amortization of intangible asset">56,000</span> and $<span id="xdx_90B_eus-gaap--AmortizationOfIntangibleAssets_pp0p0_c20210101__20210331_zUJ8Vfhk4exk" title="Amortization of intangible asset">50,000</span> for the three months ended March
31, 2022 and 2021, respectively.</span></p>

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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516806107528">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans, Warrants and Stock Based Compensation<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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<td class="text">&#160;<span></span>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock', window );">Capital Stock, Stock Plans, Warrants and Stock Based Compensation</a></td>
<td class="text"><p id="xdx_80E_eus-gaap--DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_zkV2e7LeVpub" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>6.
    </b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_82A_zToFqCtu8ow3">Capital
    Stock, Stock Plans, Warrants and Stock Based Compensation</span></span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company has certain stock option plans under which it may award incentive stock options (&#8220;ISOs&#8221;) and/or non-qualified stock
options (&#8220;NQSOs&#8221;) to employees, officers, outside directors, and outside consultants. No stock options were granted in the
first quarter of 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company granted a NQSO to Robert Ferguson on July 27, 2017 from the Company&#8217;s 2017 Stock Option Plan (&#8220;2017 Plan&#8221;)
for the purchase of up to <span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20170726__20170727__us-gaap--PlanNameAxis__custom--TwoThousandAndSeventeenStockOptionPlanMember__srt--TitleOfIndividualAxis__custom--ConsultantMember_z6aBKsJZtOY6" title="Number of stock option shares granted">100,000</span> shares of the Company&#8217;s Common Stock (&#8220;Ferguson Stock Option&#8221;) in connection with
his work as a consultant to the Company&#8217;s Test Bed Initiative (&#8220;TBI&#8221;) at our Perma-Fix Northwest Richland, Inc. (&#8220;PFNWR&#8221;)
facility at an exercise price of $<span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20170726__20170727__us-gaap--PlanNameAxis__custom--TwoThousandAndSeventeenStockOptionPlanMember__srt--TitleOfIndividualAxis__custom--ConsultantMember_zcaa1YwAEls2" title="Stock options, exercise price">3.65</span> per share, which was the fair market value of the Company&#8217;s Common Stock on the date of
grant. The term of the Ferguson Stock Option is seven years from the grant date. The vesting of the Ferguson Stock Option is subject
to the achievement of three separate milestones by certain dates. The first milestone was met and the shares under the first milestone
were issued to Robert Ferguson in May 2018. The Company had previously entered into amendments whereby the vesting dates for the second
and third milestones for the purchase of up to <span id="xdx_90C_ecustom--OptionsToPurchaseSharesOfCommonStock_c20170726__20170727__us-gaap--AwardTypeAxis__custom--FergusonStockOptionMember__srt--StatementScenarioAxis__custom--SecondMilestoneMember_zkIQh9TQBHq1" title="Options to purchase shares">30,000</span> and <span id="xdx_90B_ecustom--OptionsToPurchaseSharesOfCommonStock_c20170726__20170727__us-gaap--AwardTypeAxis__custom--FergusonStockOptionMember__srt--StatementScenarioAxis__custom--ThirdMilestoneMember_zOdhCpDIfC96" title="Options to purchase shares">60,000</span> shares of the Company&#8217;s Common Stock were extended to December
31, 2021 and December 31, 2022, respectively. On January 20, 2022, the Company&#8217;s Compensation and Stock Option Committee (&#8220;Compensation
Committee&#8221;) and the Board of Directors (&#8220;Board&#8221;) further amended the vesting dates of the second and third milestones
to December 31, 2022 and December 31, 2023, respectively. This amendment was approved by the Compensation Committee and the Board to
take effect December 31, 2021. The Company has not recognized compensation costs (fair value of approximately $<span id="xdx_90A_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pp0p0_c20220331__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_z7UauCYaLGjb" title="Unrecognized compensation cost related to unvested options consultant">289,000</span> at March 31, 2022)
for the remaining <span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20220331__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zgDhwTJYlxIe" title="Remaining stock option">90,000</span> Ferguson Stock Option under the remaining two milestones since achievement of the performance obligation under
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p id="xdx_891_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_zZ7l8vP4X9Sk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table summarizes stock-based compensation recognized for the three months ended March 31, 2022 and 2021 for our employee
and director stock options.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B9_zf0Op0JaM8Va">Schedule of Share-based Compensation, Allocation of Recognized Period Costs</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
  <tr style="display: none; vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
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    <td id="xdx_497_20220101__20220331_zciVlLv55sl9" style="text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2022</span></td>
    <td colspan="4" id="xdx_49D_20210101__20210331_zBFDJTzAv4J8" style="text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2021</span></td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">Stock Options</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_z0tTW1ZvRoP3" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: left">Employee Stock Options</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">86,000</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">33,000</td><td style="width: 1%; text-align: left">&#160;</td></tr>
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    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">16,000</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">12,000</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--ShareBasedCompensation_pp0p0_zPg7uLhKKIQi" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">102,000</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">45,000</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<p id="xdx_8AE_zfCaMfmB2Abg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2022, the Company has approximately $<span id="xdx_907_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pp0p0_c20220331__srt--TitleOfIndividualAxis__custom--EmployeeAndDirectorsMember_zlS3zwkkX3J8" title="Unrecognized compensation cost related to unvested options consultant">1,287,000</span> of total unrecognized compensation costs related to unvested options for employee
and directors. The weighted average period over which the unrecognized compensation costs are expected to be recognized is approximately
<span id="xdx_909_ecustom--WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_dtY_c20220101__20220331__srt--TitleOfIndividualAxis__custom--EmployeeAndDirectorsMember_zJlNcCUJM0Pf" title="Weighted average term for unrecognized and unvested option to be recognized">4.1</span> years.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify">&#160;</p>

<p id="xdx_899_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_zKMftzGNWgzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
summary of the Company&#8217;s total Stock Option Plans as of March 31, 2022 and March 31, 2021, and changes during the periods then
ended, are presented below. The Company&#8217;s Plans consist of the 2010 Stock Option Plan, the 2017 Plan and the 2003 Outside Directors
Stock Plan (&#8220;2003 Plan&#8221;):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B3_zGexHXxMdvdc">Schedule of Stock Options Roll Forward</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares</td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average</p>
                                                                                 <p style="margin-top: 0; margin-bottom: 0">Exercise</p>
                                               <p style="margin-top: 0; margin-bottom: 0">Price</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
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                                               <p style="margin-top: 0; margin-bottom: 0">(years)</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
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                                                                                <p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Value <sup>(3)</sup></span></p></td><td style="text-align: center">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 36%">Options outstanding January 1, 2022</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zR57pyXxzDNe" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning">4.91</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%; font-size: 11pt">&#160;</td>
    <td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td style="width: 12%; font-size: 11pt; text-align: right">&#160;</td><td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td style="width: 2%; font-size: 11pt">&#160;</td>
    <td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zZ60FR03C1F3" style="width: 12%; font-size: 11pt; text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0904">&#8212;</span></span></td><td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Granted</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z85qphEsxjLe" style="text-align: right" title="Shares Options Granted"><span style="-sec-ix-hidden: xdx2ixbrl0906">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z4rJ1nyeI8cg" style="text-align: right" title="Weighted Average Exercise Price Options Granted"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0908">&#8212;</span></span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Exercised</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_988_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zCUT3hQvTB64" style="text-align: right" title="Shares Options Exercised"><span style="-sec-ix-hidden: xdx2ixbrl0910">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zMLmIAoSNLl9" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"> <span style="-sec-ix-hidden: xdx2ixbrl0912">&#8212;</span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_za7QRWDr63R6" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"> <span style="-sec-ix-hidden: xdx2ixbrl0914">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Forfeited/expired</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zrddeIfFX8d1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"><span style="-sec-ix-hidden: xdx2ixbrl0916">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zmXYGPBN9Sk9" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"> <span style="-sec-ix-hidden: xdx2ixbrl0918">&#8212;</span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt"><span id="xdx_F47_zzZqb6Xy70v5" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options outstanding end of period <sup>(1)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zniXrCH4gYP" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending">1,019,400</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zP3LnAyLNWsj" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending">4.91</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zG1KnhiNbsDe" title="Weighted Average Remaining Contractual Term (years) Outstanding">3.8</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zzYqUU3jlLwb" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding">1,150,167</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options exercisable at March 31, 2022<sup>(1)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zX6Qq4BvQii8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable">455,900</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zAUBqlIBm0la" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable">3.92</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zf3RRtALAk1i" title="Weighted Average Remaining Contractual Term (years) Exercisable">2.5</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zM17wIG7Kgsc" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable">779,362</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares</td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">Exercise</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">Price</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average Remaining Contractual Term</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">(years)</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate Intrinsic</span></p>
                                                                                <p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Value <sup>(3)</sup></span></p></td><td style="text-align: center">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 36%">Options outstanding January 1, 2021</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zWGv26fURg1f" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning">658,400</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z2FC3V42NRc4" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning">3.87</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 12%; text-align: right">&#160;</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zRBWgJCetet9" style="width: 12%; text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0939">&#8212;</span></span></td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Granted</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ziOX9Kw3sUtj" style="text-align: right" title="Shares Options Granted"><span style="-sec-ix-hidden: xdx2ixbrl0941">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ztg22QbtJend" style="text-align: right" title="Weighted Average Exercise Price Options Granted"><span style="-sec-ix-hidden: xdx2ixbrl0943">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Exercised</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zZbo50d8WBIe" style="text-align: right" title="Shares Options Exercised"><span style="-sec-ix-hidden: xdx2ixbrl0945">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zLdtoRQa0E99" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"><span style="-sec-ix-hidden: xdx2ixbrl0947">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_zPn71otZIo2i" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"><span style="-sec-ix-hidden: xdx2ixbrl0949">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Forfeited/expired</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zr6wHFY4Vf21" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"><span style="-sec-ix-hidden: xdx2ixbrl0951">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zh8lr243qXrj" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"><span style="-sec-ix-hidden: xdx2ixbrl0953">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options outstanding end of period <sup>(2)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zd5LSNN9HwEg" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending">658,400</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zp09oDOyYLbc" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending">3.87</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zkYDXDP3dc4d" title="Weighted Average Remaining Contractual Term (years) Outstanding">3.2</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zjdRDneHpAn2" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding">2,279,267</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options exercisable at March 31, 2021<sup>(2)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zW7LVcINXNFb" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable">392,400</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zPq6nI7IYz9c" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable">4.08</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_98F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zMjYIuwYyA3f" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable">1,274,287</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"/></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F08_z9QYmHIkyEoa">(1)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F14_zLu3Zn4pXAJ9" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options with exercise prices ranging from $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zHT1zo76Muk9">2.79</span> to $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zU4ULxF2fla8">7.50</span></span></td></tr>
</table>


<table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F04_zUaGm5wINbog">(2)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F1B_zWiupfNXaw8d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options with exercise prices ranging from $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zeAzSUEIt1l8">2.79</span> to $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zZx5cRh1uPv6">7.29</span></span></td></tr>
</table>


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<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F08_zKi1SVHksv6">(3)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F14_zZcG4PzUoJda" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The intrinsic value of a stock option is the amount by which
the market value of the underlying stock exceeds the exercise price of the option.</span></td></tr>
</table>


<p id="xdx_8A6_zkh3HXG0nIqj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the three months ended March 31, 2022, the Company issued a total of <span id="xdx_90B_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_c20220101__20220331__us-gaap--PlanNameAxis__custom--TwoThousandThreeOutsideDirectorsStockOptionPlanMember__us-gaap--StatementClassOfStockAxis__us-gaap--CommonStockMember_zCiCKQFQ7fg5">19,520</span> shares of its Common Stock under the 2003 Plan to its outside
directors as compensation for serving on our Board. The Company recorded approximately $<span id="xdx_904_eus-gaap--AllocatedShareBasedCompensationExpense_c20220101__20220331__us-gaap--PlanNameAxis__custom--TwoThousandTwentyManagementIncentivePlanMember_zlvSOghMO611" title="Allocated share-based compensation expense">120,000</span> in compensation expenses (included in
selling, general and administration (&#8220;SG&amp;A&#8221;) expenses) in connection with the issuance of shares of its Common Stock
to outside directors.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with a $<span id="xdx_902_eus-gaap--LoansPayable_iI_pp0p0_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zFx0JShNSoX2" title="Loans payable">2,500,000</span> loan that the Company entered into with Mr. Robert Ferguson (the &#8220;Ferguson Loan&#8221;) on April 1,
2019, the Company issued a warrant to Mr. Ferguson for the purchase of up to <span id="xdx_900_eus-gaap--ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_iI_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zGqlLhAypxTf" title="Warrant to purchase">60,000</span> shares of our Common Stock at an exercise price of
$<span id="xdx_909_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zy67Z6hXydyj" title="Warrants exercise price">3.51</span> per share. <span id="xdx_90C_ecustom--WarrantExercisableDescription_c20190330__20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zqfD5INx1Fk4" title="Warrant exercisable, description">The warrant expires on April 1, 2024 and remains outstanding at March 31, 2022. The Ferguson Loan was paid-in-full in
December 2020.</span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516808780760">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Loss Per Share<br></strong></div></th>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>7.
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_z3a0tq9Via4a" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Basic
loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted
loss per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding
common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive loss earnings per
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="text-align: left">Net loss attributable to Perma-Fix Environmental Services, Inc., common stockholders:</td><td>&#160;</td>
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    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left">Stock options</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">405</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">30</td><td style="text-align: left">&#160;</td></tr>
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    <td>Warrant</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1035">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1036">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804543368">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Long Term Debt<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>8.</b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_828_zEIqHQNgHQ26">Long
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p id="xdx_89A_eus-gaap--ScheduleOfDebtInstrumentsTextBlock_zfiFJSy0V146" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Long-term
debt consists of the following:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="border-bottom: Black 1.5pt solid">(Amounts in Thousands)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">March 31, 2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Revolving Credit</b> facility
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-style: normal; width: 60%; font-weight: normal; text-align: left"><b>Notes Payable</b> to 2023 and 2025, annual interest
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--LongTermDebt_c20211231_pn3n3" style="text-align: right" title="Total debt">993</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Less current portion of long-term debt</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt; text-align: left">Long-term debt</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20220331_z2KKoFWSB3Xf" style="border-bottom: Black 2.5pt double; text-align: right">491</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
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  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -31.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td id="xdx_F02_zesljS6BxGE9" style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup>(1)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F1C_zF2e3Et7L9F6" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</span></td>
</tr>
<tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F09_zVqwt9WDf1z3">(2)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F10_zzrb1I02XJtd" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net of debt issuance
costs of ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1">120,000</span>) and ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4">112,000</span>) at March 31, 2022 and December 31, 2021, respectively.</span></td>
</tr></table>

<p id="xdx_8AC_zVcKSjdwM32g" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Revolving
Credit and Term Loan Agreement</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company entered into a Second Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated May 8, 2020 (&#8220;Loan
Agreement&#8221;), with PNC National Association (&#8220;PNC&#8221;), acting as agent and lender. The Loan Agreement provides the Company
with the following credit facility with a maturity date of <span id="xdx_903_eus-gaap--DebtInstrumentMaturityDate_dd_c20200506__20200508__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember_zD9mbATferLl" title="Debt instrument maturity date">March 15, 2024</span>: (a) up to $<span id="xdx_90A_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_c20200508__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember_pp0p0" title="Line of credit facility, maximum borrowing capacity">18,000,000</span> revolving credit (&#8220;revolving credit&#8221;)
and (b) a term loan (&#8220;term loan&#8221;) of approximately $<span id="xdx_900_eus-gaap--LongTermDebt_c20200508__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_pp0p0" title="Total debt">1,742,000</span>, requiring monthly installments of $<span id="xdx_90C_eus-gaap--DebtInstrumentPeriodicPayment_c20200506__20200508__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_pp0p0" title="Debt instrument periodic payment">35,547</span>. The maximum that
the Company can borrow under the revolving credit is based on a percentage of eligible receivables (as defined) at any one time reduced
by outstanding standby letters of credit and borrowing reductions that our lender may impose from time to time. The Loan Agreement, as
amended, also provides a capital expenditure line of up to $<span id="xdx_904_eus-gaap--LineOfCreditFacilityCurrentBorrowingCapacity_c20210504_pp0p0" title="Debt instrument, borrowing capacity, amount">1,000,000</span> with advances on the line, subject to certain limitations, permitted
for up to twelve months starting May 4, 2021 (the &#8220;Borrowing Period&#8221;). Only interest is payable on advances during the Borrowing
Period. At the end of the Borrowing Period, the total amount advanced under the line will amortize equally based on a five-year amortization
schedule with principal payment due monthly plus interest. At the maturity date of the Loan Agreement, as amended, any unpaid principal
balance plus interest, if any, will become due. No advance on the capital line has been made as of March 31, 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
March 29, 2022, the Company entered into an amendment to its Loan Agreement with its lender which provided, among other things, the following:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="width: 0.25in">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">waived
    the Company&#8217;s failure to meet the minimum quarterly fixed charge coverage ratio (&#8220;FCCR&#8221;) requirement for the fourth
    quarter of 2021;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">removes
    the quarterly FCCR testing requirement for the first quarter of 2022;</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">reinstates
    the quarterly FCCR testing requirement starting for the second quarter of 2022 and revises the methodology to be used in calculating
    the FCCR for the quarters ending June 30, 2022, September 30, 2022, and December 31, 2022 (with no change to the minimum 1.15:1 ratio
    requirement for each quarter);</span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_908_eus-gaap--LineOfCreditFacilityBorrowingCapacityDescription_c20220101__20220331_zyvtAMMw9rEg" title="Line of credit facility, borrowing capacity, description">requires
    maintenance of a minimum of $3,000,000 in borrowing availability under the revolving credit until the minimum FCCR requirement for
    the quarter ended June 30, 2022 has been met and certified to the lender; and</span></span></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td>&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">revises
    the annual rate used to calculate the Facility Fee (as defined in the Loan Agreement) on the revolving credit, with addition of the
    capital expenditure line, from <span id="xdx_902_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329__srt--RangeAxis__srt--MinimumMember_zrpHNtv2XoEg" title="Percentage of unused line fees">0.375</span>% to <span id="xdx_908_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329__srt--RangeAxis__srt--MaximumMember_z46SMOa2ee24" title="Percentage of unused line fees">0.500</span>%. Upon meeting the minimum FCCR requirement of 1.15:1 on a twelve months trailing
    basis, the Facility Fee rate of <span id="xdx_902_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329_zCRjNLGKYC9k" title="Percentage of unused line fees">0.375</span>% will be reinstated.</span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with the amendment, we paid PNC a fee of $<span id="xdx_909_eus-gaap--DebtInstrumentFeeAmount_iI_c20220329__srt--TitleOfIndividualAxis__custom--LenderMember_zNQOK9iV5iBk">15,000</span> which is being amortized over the remaining term of the Loan Agreement, as
amended, as interest expense-financing fees.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the Loan Agreement, as amended, payment of annual rate of interest due on the revolving credit is at prime (<span id="xdx_905_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--VariableRateAxis__us-gaap--PrimeRateMember_zSCaCKavRQ8b" title="Percentage of basis spread on variable rate">3.50</span>% at March 31, 2022)
plus <span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zFZb9ugQNds1" title="Percentage of basis spread on variable rate">2</span>% or LIBOR plus <span id="xdx_90A_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_ziJsUke3RNpg" title="Percentage of basis spread on variable rate">3.00</span>% and the term loan and the capital expenditure line at prime plus <span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--DebtInstrumentAxis__custom--CapitalExpenditureMember__us-gaap--VariableRateAxis__us-gaap--PrimeRateMember_zlLTxCmIhdX8" title="Percentage of basis spread on variable rate">2.50</span>% or LIBOR plus <span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--DebtInstrumentAxis__custom--CapitalExpenditureMember__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zaWN3Dr34mAb" title="Percentage of basis spread on variable rate">3.50</span>%. Under the LIBOR
option of interest payment, a LIBOR floor of <span id="xdx_908_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zunAaYBYob9d" title="Percentage of basis spread on variable rate">0.75</span>% applies in the event that LIBOR falls below <span id="xdx_908_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zpqKp6eHZFF8" title="Percentage of basis spread on variable rate">0.75</span>% at any point in time.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may terminate its Loan Agreement, as amended, upon 90 days&#8217; prior written notice upon payment in full of our obligations
under the Loan Agreement. The Company has agreed to pay PNC 0.5% of the total financing if it pays off its obligations after May 7, 2021
but prior to or on May 7, 2022. No early termination fee will apply if the Company pays off its obligations under the Loan Agreement
after May 7, 2022.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
March 31, 2022, the borrowing availability under the Company&#8217;s revolving credit was approximately $<span id="xdx_903_eus-gaap--LineOfCreditFacilityRemainingBorrowingCapacity_iI_pp0p0_c20220331__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zdIepKdrqFdk" title="Line of credit facility, remaining borrowing capacity">4,544,000</span> based on our eligible
receivables and includes a reduction in borrowing availability of approximately $<span id="xdx_90A_eus-gaap--LettersOfCreditOutstandingAmount_iI_pp0p0_c20220331__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zr4OiKS4NhOh" title="Letters of credit outstanding, amount">3,020,000</span> from outstanding standby letters of credit.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s credit facility under its Loan Agreement, as amended, with PNC contains certain financial covenants, along with customary
representations and warranties. A breach of any of these financial covenants, unless waived by PNC, could result in a default under our
credit facility allowing our lender to immediately require the repayment of all outstanding debt under our credit facility and terminate
all commitments to extend further credit. The Company was not required to perform testing of the FCCR requirement in the first
quarter of 2022 pursuant to the March 29, 2022 amendment as discussed above, otherwise, it met all of its other financial covenant
requirements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<span></span>
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<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for long-term debt.</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> -URI https://asc.fasb.org/topic&amp;trid=2208564<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804533816">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_CommitmentsAndContingenciesDisclosureAbstract', window );"><strong>Commitments and Contingencies Disclosure [Abstract]</strong></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_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock', window );">Commitments and Contingencies</a></td>
<td class="text"><p id="xdx_806_eus-gaap--CommitmentsAndContingenciesDisclosureTextBlock_zXlOxaOdnIh1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>9.
    </b></span></td>
    <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_821_zjmpFFcuUTq8">Commitments
    and Contingencies</span></span></b></span></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Hazardous
Waste</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with our waste management services, the Company processes both hazardous and non-hazardous waste, which we transport to our
own, or other, facilities for destruction or disposal. As a result of disposing of hazardous substances, in the event any cleanup is
required at the disposal site, the Company could be a potentially responsible party for the costs of the cleanup notwithstanding any
absence of fault on our part.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Legal
Matters</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the normal course of conducting our business, we are involved in various litigation. We are not a party to any litigation or governmental
proceeding which our management believes could result in any judgments or fines against us that could would have a material adverse effect
on our financial position, liquidity or results of future operations.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>Tetra
Tech EC, Inc. (&#8220;Tetra Tech&#8221;)</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
July 2020, Tetra Tech EC, Inc. (&#8220;Tetra Tech&#8221;) filed a complaint in the United States District Court for the Northern District
of California (the &#8220;Court&#8221;) against CH2M Hill, Inc. (&#8220;CH2M&#8221;) and four subcontractors of CH2M, including the Company
(&#8220;Defendants&#8221;). The complaint alleges various claims, including a claim for negligence, negligent misrepresentation, equitable
indemnification and related business claims against all defendants related to alleged damages suffered by Tetra Tech in respect of certain
draft reports prepared by defendants at the request of the U.S. Navy as part of an investigation and review of certain whistleblower
complaints about Tetra Tech&#8217;s environmental restoration at the Hunter&#8217;s Point Naval Shipyard in San Francisco.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">CH2M
was hired by the Navy in 2016 to review Tetra Tech&#8217;s work. CH2M subcontracted with environmental consulting and cleanup firms Battelle
Memorial Institute, Cabrera Services, Inc., SC&amp;A, Inc. and the Company to assist with the review, according to the complaint.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
insurance carrier is providing a defense on our behalf in connection with this lawsuit, subject to a $100,000 self-insured retention
and the terms and limitations contained in the insurance policy.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 7, 2021, Defendants&#8217; motion to dismiss the complaint in its entirety was granted without prejudice, with leave to amend.
Tetra Tech subsequently filed a First Amended Complaint (&#8220;FAC&#8221;) and Defendants filed a motion to dismiss Tetra Tech&#8217;s
FAC (the &#8220;Motion&#8221;). Tetra Tech filed an opposition to Defendant&#8217;s motion to dismiss Tetra Tech&#8217;s FAC. Defendants
subsequently filed a joint reply to Tetra Tech&#8217;s motion in opposition. On January 27, 2022, the Motion was granted in part and
denied in part by the Court. Tetra Tech&#8217;s claims for: (1) Negligence; (2) Equitable Indemnification/Contribution; and (3) Unfair
Business Practices were dismissed. Tetra Tech was given leave to re-assert the Unfair Business Practices claim but chose not to do so,
which means that claim is now also dismissed. Tetra Tech&#8217;s claims that survived the Motion are: (1) Intentional Interference with
Contractual Relations; and (2) Inducing a Breach of Contract. The Company continues to believe it does not have any liability to Tetra
Tech.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Perma-Fix
Canada, Inc. (&#8220;PF Canada&#8221;)</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the fourth quarter of 2021, PF Canada received a Notice of Termination (&#8220;NOT&#8221;) from Canadian Nuclear Laboratories, LTD. (&#8220;CNL&#8221;)
on a Task Order Agreement (&#8220;TOA&#8221;) that PF Canada entered into with CNL in May 2019 for remediation work within Ontario, Canada
(&#8220;Agreement&#8221;). The NOT was received after work under the TOA was substantially completed and work under the TOA has since
been completed. CNL may terminate the TOA at any time for convenience. As of March 31, 2022, PF Canada has approximately $<span id="xdx_900_ecustom--UnpaidReceivablesAndUnbilledCosts_c20220101__20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zYWwBa8KOLi7">2,722,000</span> in
unpaid receivables and unbilled costs due from CNL as a result of work performed under the TOA. Additionally, CNL has approximately $<span id="xdx_900_eus-gaap--AccountsReceivableNetCurrent_iI_c20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zRypKegFXm39">1,150,000</span>
in contractual holdback under the TOA that is payable to PF Canada. CNL also established a bond securing approximately $<span id="xdx_907_ecustom--BondSecuringAmount_uCAD_c20220101__20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zcAC16bhbADl">1,900,000</span> (CAD)
to cover certain issue raised in connection with the TOA. Under the TOA, CNL may be entitled to set off certain costs and expenses incurred
by CNL in connection with the termination of the TOA, including the bond as discussed above, against amounts owed to PF Canada for work
performed by PF Canada or its subcontractors. PF Canada continues to be in discussions with CNL to finalize the amounts due to PF Canada
under the TOA and continues to believes these amounts are due and payable.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Insurance</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company has a <span id="xdx_90C_ecustom--PeriodOfFiniteRiskInsurancePolicy_dtY_c20030601__20030630__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zlK95s5q78ef">25</span>-year finite risk insurance policy entered into in June 2003 (&#8220;2003 Closure Policy&#8221;) with AIG Specialty Insurance
Company (&#8220;AIG&#8221;), which provides financial assurance to the applicable states for our permitted facilities in the event of
unforeseen closure. The 2003 Closure Policy, as amended, provides for a maximum allowable coverage of $<span id="xdx_908_ecustom--MaximumAllowableCoverageOfInsurancePolicy_iI_pp0p0_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zvVVLZTleqWe">28,177,000</span> which includes available
capacity to allow for annual inflation and other performance and surety bond requirements. Total coverage under the 2003 Closure Policy,
as amended, was $<span id="xdx_90D_ecustom--CoverageAmountUnderPolicy_iI_pp0p0_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zm2NxGXKfHka">21,047,000</span> at March 31, 2022. At March 31, 2022 and December 31, 2021, finite risk sinking funds contributed by the
Company related to the 2003 Closure Policy which is included in other long term assets on the accompanying Consolidated Balance Sheets
totaled $<span id="xdx_90F_eus-gaap--RestrictedCashNoncurrent_iI_pid_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zDL2MPtbum8g">11,482,000</span> and $<span id="xdx_90C_eus-gaap--RestrictedCashNoncurrent_iI_c20211231__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zt8SDxLju5fg">11,471,000</span>, respectively, which included interest earned of $<span id="xdx_902_eus-gaap--InterestIncomeOther_pp0p0_c20220101__20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zfG3FMnvDks">2,011,000</span> and $<span id="xdx_90D_eus-gaap--InterestIncomeOther_pp0p0_c20210101__20211231__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zRVeS3JhcMja">2,000,000</span> on the finite risk sinking
funds as of March 31, 2022 and December 31, 2021, respectively. Interest income for the three months ended March 31, 2022 and 2021 was
approximately $<span id="xdx_902_eus-gaap--InterestIncomeOther_pp0p0_c20220101__20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zSQ7LiHi6uq6">11,000</span> and $<span id="xdx_90E_eus-gaap--InterestIncomeOther_pp0p0_c20210101__20210331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zVzb1v6hadrk">18,000</span>, respectively. If we so elect, AIG is obligated to pay us an amount equal to <span id="xdx_90B_ecustom--InsurersObligationToEntityOnTerminationOfContract_iI_pid_dp_uPure_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zbzx5Kz9Xfm6">100</span>% of the finite risk
sinking fund account balance in return for complete release of liability from both us and any applicable regulatory agency using this
policy as an instrument to comply with financial assurance requirements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Letter
of Credits and Bonding Requirements</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">From
time to time, the Company is required to post standby letters of credit and various bonds to support contractual obligations to customers
and other obligations, including facility closures. At March 31, 2022, the total amount of standby letters of credit outstanding was
approximately $<span id="xdx_902_eus-gaap--LettersOfCreditOutstandingAmount_iI_pp0p0_c20220331_zuq0PF9HcEB4">3,020,000</span> and the total amount of bonds outstanding was approximately $<span id="xdx_902_ecustom--BondOutstanding_iI_pp0p0_c20220331_zpu369i4xZL7">51,295,000</span>.</span></p>

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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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for commitments and contingencies.</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 440<br> -URI https://asc.fasb.org/topic&amp;trid=2144648<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 954<br> -SubTopic 440<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=6491277&amp;loc=d3e6429-115629<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -URI https://asc.fasb.org/topic&amp;trid=2127136<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=123406679&amp;loc=d3e25336-109308<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=123406679&amp;loc=d3e25336-109308<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516805456632">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Discontinued Operations<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>10.</b></span></td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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of our discontinued operations. The Company&#8217;s discontinued operations had no revenues for each of the periods noted above.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.75in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F05_zgSmrax4Gsb3">(1)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F1E_zN7wpQQcq0a7" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">net of accumulated
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<p id="xdx_8A0_zTSC5s9ZYcyf" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left">&#160;</p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.</p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804462360">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Operating Segments<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2022</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_SegmentReportingAbstract', window );"><strong>Segment Reporting [Abstract]</strong></a></td>
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  <td><b><span id="xdx_828_zZrDM3WsEd7a">Operating Segments</span></b></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
accordance with ASC 280, &#8220;Segment Reporting&#8221;, the Company defines an operating segment as a business activity: (1) from which
we may earn revenue and incur expenses; (2) whose operating results are regularly reviewed by the chief operating decision maker (&#8220;CODM&#8221;)
to make decisions about resources to be allocated to the segment and assess its performance; and (3) for which discrete financial information
is available.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
reporting segments are defined as below:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">TREATMENT
SEGMENT, which includes:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">SERVICES
SEGMENT, which includes:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>




<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></td>
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  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s segment also included the Medical Segment in 2021. As previously discussed, the Company made the strategic decision
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of its interest in PFM Poland (which comprised the Medical Segment) in December 2021. The Company&#8217;s Medical Segment had not generated
any revenue and was involved in the Company&#8217;s medical isotope production technology.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
reporting segments exclude our corporate headquarters and our discontinued operations (see &#8220;Note 10 &#8211; Discontinued Operations&#8221;)
which do not generate revenues.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p id="xdx_897_eus-gaap--ScheduleOfSegmentReportingInformationBySegmentTextBlock_zuYSjZ7a2Mw7" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
table below presents certain financial information of our operating segments for the three months ended March 31, 2022 and 2021 (in thousands):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Segment
Reporting for the Quarter Ended March 31, 2022</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B6_zQEgUyWPAuuh">Schedule
of Segment Reporting Information</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Segment
Reporting for the Quarter Ended March 31, 2021</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zJZJvkdYbRdb" style="text-align: right" title="Interest expense">(8</td><td style="text-align: left">)</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zJbiXOmFENuf" style="font-weight: bold; text-align: right" title="Interest expense"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1384">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zSQAQ8kF5c5j" style="text-align: right" title="Interest expense">(40</td><td style="text-align: left">)</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_987_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zSJOFdVAign9" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1394">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_985_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zd0zgJxWe83f" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1396">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZygsAKheOil" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1398">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zEQMoxDgIuuf" style="text-align: right" title="Interest expense-financing fees">(8</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331_z4BKl3rt79H4" style="text-align: right" title="Interest expense-financing fees">(8</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Depreciation and amortization">85</td><td style="text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Depreciation and amortization"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1408">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Depreciation and amortization">395</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Depreciation and amortization">5</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--DepreciationAndAmortization_c20210101__20210331_pn3n3" style="text-align: right" title="Depreciation and amortization">400</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Segment (loss) income before income taxes</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes">(119</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes">555</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes">(76</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes">360</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes">(1,415</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes">(1,055</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
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    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1430">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1432">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_986_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Income tax (benefit) expense">(17</td><td style="text-align: left">)</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_989_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1436">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331_pn3n3" style="text-align: right" title="Income tax (benefit) expense">(17</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Segment (loss) income</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98D_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)">361</td><td style="text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Expenditures for segment assets (net)"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1460">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-indent: -27pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F0C_zPLXrK3WN3Y1">(1)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F1B_zaKTVodTNF4h" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amounts reflect
the activity for corporate headquarters not included in the segment information.</span></td>
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<tr style="vertical-align: top; text-align: justify">
<td style="text-align: left">&#160;</td><td>&#160;</td><td style="text-align: justify">&#160;</td></tr>
<tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F00_z4sPfA1Lyvub">(2)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F19_zVs4s7kjvoVl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net of financed
amount of $<span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure">114,000</span> and $<span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg">29,000</span> for the three months ended March 31, 2022 and 2021, respectively.</span></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.</p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804455480">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Income Taxes<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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  <td style="width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>12.</b></span></td>
  <td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_820_zmBqf4qJ3zJ6">Income Taxes</span></span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities
available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company had income tax benefit of approximately $<span id="xdx_909_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3d_di_c20220101__20220331_zdCdKCjvdZ79">673,000</span> for continuing operations for the three months ended March 31, 2022 as compared
to income tax benefit of approximately $<span id="xdx_904_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3d_di_c20210101__20210331_zQ3HseJmVnIg">17,000</span> for continuing operations for the three months ended March 31, 2021. The Company&#8217;s
effective tax rate was approximately <span id="xdx_906_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pid_dp_uPure_c20220101__20220331_zXpOUhQ4IOCj">35.0</span>% and <span id="xdx_90D_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pid_dp_uPure_c20210101__20210331_zxQa7IvS04ac">1.6</span>% for the three months ended March 31, 2022 and the corresponding period of 2021, respectively.
The Company&#8217;s tax rate for the three months ended March 31, 2022 was impacted by non-deductible expenses and state taxes. The Company&#8217;s
tax rate for the three months ended March 31, 2021 was impacted by non-deductible expenses, state taxes, and by the Company&#8217;s full
valuation on its net deferred tax assets which was subsequently released partially in the third quarter of 2021.</span></p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.</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 21<br> -URI https://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32857-109319<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 S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 11.C)<br> -URI https://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330215-122817<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 17<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32809-109319<br><br>Reference 4: 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.5.Q1)<br> -URI https://asc.fasb.org/extlink&amp;oid=122134291&amp;loc=d3e330036-122817<br><br>Reference 5: 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 14<br> -URI https://asc.fasb.org/extlink&amp;oid=121826272&amp;loc=d3e32705-109319<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 270<br> -Section 50<br> -Paragraph 1<br> -URI https://asc.fasb.org/extlink&amp;oid=6424409&amp;loc=d3e44925-109338<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -URI https://asc.fasb.org/topic&amp;trid=2144680<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=6424122&amp;loc=d3e41874-109331<br><br>Reference 9: 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 https://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804464600">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Variable Interest Entities (&#8220;VIE&#8221;)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract', window );"><strong>Organization, Consolidation and Presentation of Financial Statements [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
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<td class="text"><p id="xdx_80D_eus-gaap--VariableInterestEntityDisclosureTextBlock_zYULxnZfBWX1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>13.</b></span></td>
  <td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_823_zHyu4aD6ysYd">Variable Interest Entities (&#8220;VIE&#8221;)</span></span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company and Engineering/Remediation Resources Group, Inc. (&#8220;ERRG&#8221;) previously entered into an unpopulated joint venture agreement
for project work bids within the Company&#8217;s Services Segment with the joint venture doing business as Perma-Fix ERRG, a general
partnership. The Company has a <span id="xdx_90E_eus-gaap--VariableInterestEntityOwnershipPercentage_pid_dp_c20220101__20220331_z6rlTYCizBNe">51</span>% partnership interest in the joint venture and ERRG has a <span id="xdx_90A_eus-gaap--VariableInterestEntityOwnershipPercentage_pid_dp_c20220101__20220331__dei--LegalEntityAxis__custom--EngineeringRemediationResourcesGroupIncMember_zg3pO0inReG8">49</span>% partnership interest in the joint venture.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company determines whether joint ventures in which it has invested meet the criteria of a VIE at the start of each new venture and when
a reconsideration event has occurred. A VIE is a legal entity that satisfies any of the following characteristics: (a) the legal entity
does not have sufficient equity investment at risk; (b) the equity investors at risk as a group, lack the characteristics of a controlling
financial interest; or (c) the legal entity is structured with disproportionate voting rights.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company consolidates a VIE if it is determined to be the primary beneficiary of the VIE. The primary beneficiary has both the power to
direct the activities of the VIE that most significantly impact the entity&#8217;s economic performance and the obligation to absorb
losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
on the Company&#8217;s evaluation of Perma-Fix ERRG and related agreements with Perma-Fix ERRG, the Company determined that Perma-Fix
ERRG continues to be a VIE in which we are the primary beneficiary. At March 31, 2022, Perma-Fix ERRG had total assets of $<span id="xdx_90D_eus-gaap--Assets_iI_pid_c20220331__dei--LegalEntityAxis__custom--PermaFixERRGMember_zyppQN5LyWdl">122,000</span> and
total liabilities of approximately $<span id="xdx_908_eus-gaap--Liabilities_iI_pid_c20220331__dei--LegalEntityAxis__custom--PermaFixERRGMember_zNxLTaxkizxd">122,000</span> which are all recorded as current.</span></p>

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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">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for a variable interest entity (VIE), including but not limited to, judgments and assumptions in determining whether to consolidate and in identifying the primary beneficiary, gain (loss) recognized on the initial consolidation of the VIE, terms of arrangements, amounts and classification of the VIE's assets and liabilities, and the entity's maximum exposure to loss.</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 810<br> -URI https://asc.fasb.org/topic&amp;trid=2197479<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804406632">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Executive Compensation<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_CompensationAndRetirementDisclosureAbstract', window );"><strong>Retirement Benefits [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CompensationAndEmployeeBenefitPlansTextBlock', window );">Executive Compensation</a></td>
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  <td style="width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>14.</b></span></td>
  <td><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_828_zKohzZPd5NMl">Executive Compensation</span></span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><i>&#160;</i></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company&#8217;s Compensation Committee and the Board determined that no performance payment would be made to each executive officer under
his 2021 Management Incentive Plan (&#8220;MIP&#8221;). In lieu of any performance payment to each executive officer under his 2021 MIP
and in an attempt to retain the executive officer, on January 20, 2022, the Compensation Committee and the Board determined that the
base annual compensation for each executive officer for 2022 is increased by approximately <span id="xdx_909_ecustom--PercentageIncreaseInAnnualCompensation_pid_dp_c20220101__20220331__srt--TitleOfIndividualAxis__srt--ExecutiveOfficerMember_zzx4BKhP77Ag">6.4</span>%, effective January 1, 2022, to offset
the cost-of-living increase.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
January 20, 2022, the Board and the Compensation Committee also approved individual MIP for the calendar year 2022 for each of our executive
officers. Each MIP is effective January 1, 2022 and applicable for year 2022. Each MIP provides guidelines for the calculation of annual
cash incentive-based compensation, subject to Compensation Committee oversight and modification. The performance compensation under each
of the MIPs is based upon meeting certain of the Company&#8217;s separate target objectives during 2022. Assuming each target objective
is achieved under the same performance threshold range under each MIP, the total potential target performance compensation payable ranges
from <span id="xdx_903_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zoTabCeMVdUf" title="Compensation arrangement with individual, cash awards, minimum, percentage">25</span>% to <span id="xdx_902_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--CEOMember_z5b6xDBMT406" title="Compensation arrangement with individual, cash awards, maximum, percentage">150</span>% of the 2022 base salary for the CEO ($<span id="xdx_90C_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zqCAb6jKpLP2" title="Compensation arrangement with individual, cash awards, minimum, amount">93,717</span> to $<span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zWjJSLq2Gxpc" title="Compensation arrangement with individual, cash awards, maximum, amount">562,304</span>), <span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zR6EIgTyIZT9" title="Compensation arrangement with individual, cash awards, minimum, percentage">25</span>% to <span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zvT8aZx4OZDe" title="Compensation arrangement with individual, cash awards, maximum, percentage">100</span>% of the 2022 base salary for the CFO ($<span id="xdx_904_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_z0FbJEbayUgc" title="Compensation arrangement with individual, cash awards, minimum, amount">76,193</span>
to $<span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zrabjIwE7D7l" title="Compensation arrangement with individual, cash awards, maximum, amount">304,772</span>), <span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_z7ZYoqgMYbO3" title="Compensation arrangement with individual, cash awards, minimum, percentage">25</span>% to <span id="xdx_905_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_zmEhL94zKPJ3" title="Compensation arrangement with individual, cash awards, maximum, percentage">100</span>% of the 2022 base salary for the EVP of Strategic Initiatives ($<span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_zjqOLC7QpBM" title="Compensation arrangement with individual, cash awards, minimum, amount">63,495</span> to $<span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_z4aApH7Mg0Vk" title="Compensation arrangement with individual, cash awards, maximum, amount">253,980</span>), <span id="xdx_900_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zADzbP3dk9p3" title="Compensation arrangement with individual, cash awards, minimum, percentage">25</span>% to <span id="xdx_907_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zB3JMne2MsIi" title="Compensation arrangement with individual, cash awards, maximum, percentage">100</span>% of the 2022
base salary for the EVP of Nuclear and Technical Services ($<span id="xdx_901_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zQzWxsKTMOa1" title="Compensation arrangement with individual, cash awards, minimum, amount">76,193</span> to $<span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zbXA9MhzNKld" title="Compensation arrangement with individual, cash awards, maximum, amount">304,772</span>) and <span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_zUmoOKiREC1d" title="Compensation arrangement with individual, cash awards, minimum, percentage">25</span>% to <span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_zMqqkQ7m6xKd" title="Compensation arrangement with individual, cash awards, maximum, percentage">100</span>% ($<span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_znOGHeyofI3k" title="Compensation arrangement with individual, cash awards, minimum, amount">65,308</span> to $<span id="xdx_901_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_z1thkEZ7O3o5" title="Compensation arrangement with individual, cash awards, maximum, amount">261,233</span>) of the 2022 base
salary for the EVP of Waste Treatment Operations.</span></p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.</p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804570264">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Subsequent Events<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_SubsequentEventsAbstract', window );"><strong>Subsequent Events [Abstract]</strong></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_us-gaap_SubsequentEventsTextBlock', window );">Subsequent Events</a></td>
<td class="text"><p id="xdx_809_eus-gaap--SubsequentEventsTextBlock_zjXPibVJeAHl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>15.</b></span></td>
  <td style="text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration: underline"><span id="xdx_829_zaYCASotLFld">Subsequent Events</span></span></b></span></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Management
evaluated events occurring subsequent to March 31, 2022 through May 5, 2022, the date these consolidated financial statements were available
for issuance, and determined that no material recognizable subsequent events occurred.</span></p>

<span></span>
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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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.</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 855<br> -URI https://asc.fasb.org/topic&amp;trid=2122774<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 855<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=6842918&amp;loc=SL6314017-165662<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804467480">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Summary of Significant Accounting Policies (Policies)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2022</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_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
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<td class="text"><p id="xdx_84E_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zlFMS3erTZeb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_864_zYjYieBmuiB4">Recently
Adopted Accounting Standards</span></b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
May 2021, the Financial Accounting Standards Board (&#8220;FASB&#8221;) issued Accounting Standards Update (&#8220;ASU&#8221;) No. 2021-04,
&#8220;Earnings Per Share (Topic 206), Debt-Modifications and Extinguishments (Subtopic 470-50), Compensation-Stock Compensation (Topic
718), and Derivatives and Hedging-Contracts in Entity&#8217;s Own Equity (Subtopic 815-40): Issuer&#8217;s Accounting for Certain Modifications
or Exchanges of Freestanding Equity-Classified Written Call Options (a consensus of the FASB Emerging Issues Task Force).&#8221; ASU
2021-04 addresses issuer&#8217;s accounting for certain modifications or exchanges of freestanding equity-classified written call options.
This ASU is effective for all entities, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal
years. Early adoption is permitted. The adoption of this ASU by the Company effective January 1, 2022 did not have a material impact
on its financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<span></span>
</td>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock', window );">Recently Issued Accounting Standards &#8211; Not Yet Adopted</a></td>
<td class="text"><p id="xdx_843_ecustom--NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_z1olpfQeEYU8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span id="xdx_867_zag1M9rPevX6">Recently
Issued Accounting Standards &#8211; Not Yet Adopted</span></b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
June 2016, the FASB issued ASU No. 2016-13, &#8220;Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments,&#8221;
and various subsequent amendments to the initial guidance (collectively, &#8220;Topic 326&#8221;). Topic 326 introduces an approach,
based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale
debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most
financial assets measured at amortized cost and certain other instruments, including trade and other receivables and loans. Entities
are required to apply the standard&#8217;s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the
first reporting period in which the guidance is adopted. In November 2019, FASB issued ASU 2019-10, &#8220;Financial Instruments &#8211;
Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842),&#8221; which defers the effective date of ASU
2016-13 for public companies that are considered smaller reporting companies (&#8220;SRC&#8221;) as defined by the Commission to fiscal
years beginning after December 15, 2022, including interim periods within those fiscal years. These ASUs are effective January 1, 2023
for the Company as an SRC. Under new guidance issued by the Commission in March 2020, the Company continues to qualify as a smaller reporting
company but became an accelerated filer starting with its 2021 Form 10-K and all subsequent filings. The Company is currently evaluating
the impact of these ASU on its consolidated financial statements.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
March 2020, the FASB issued ASU 2020-04, &#8220;Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform
on Financial Reporting,&#8221; which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships
and other transactions affected by the discontinuation of the London Interbank Offered Rate (&#8220;LIBOR&#8221;) or by another reference
rate expected to be discontinued because of reference rate reform. The guidance was effective beginning March 12, 2020 and can be applied
prospectively through December 31, 2022. In January 2021, the FASB issued ASU No. 2021-01, &#8220;Reference Rate Reform (Topic 848):
Scope,&#8221; which clarified the scope and application of the original guidance. The Company plans to adopt both ASUs when LIBOR is
discontinued. The Company is currently evaluating the impact of the new ASUs on its condensed consolidated financial statements. As of
the date of this report, the Company has determined that only its obligations under the credit facility as described in &#8220;Note 8
&#8211; Long Term Debt would be impacted by these ASUs. The Company&#8217;s obligations under
its credit facility permit for payment of annual rate of interests on its obligations using prime rate or LIBOR.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
August 2020, the FASB issued ASU No. 2020-06, &#8220;Debt &#8211; Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives
and Hedging &#8211; Contracts in Entity&#8217;s Own Equity.&#8221; ASU 2020-06 simplifies the accounting for convertible instruments
by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts
in an entity&#8217;s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06
is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as an
SRC. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within
those fiscal years. The Company is currently evaluating the impact of this ASU on its consolidated financial statements and disclosures.</span></p>

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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for new accounting pronouncements that has been issued, but not yet adopted [Policy Text Block].</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>
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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>
<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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516803032568">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue from Contract with Customer [Abstract]</strong></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_us-gaap_DisaggregationOfRevenueTableTextBlock', window );">Schedule Of Disaggregation Of Revenue</a></td>
<td class="text"><p id="xdx_89E_eus-gaap--DisaggregationOfRevenueTableTextBlock_zblVZNYlnOB7" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B4_zhTL3GfAHGMc" style="display: none">Schedule Of Disaggregation Of Revenue</span></span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
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    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">(In thousands)</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zrKYYmDxnKlk" style="width: 6%; text-align: right" title="Net revenues">5,761</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember_zuAKOlTMnJU3" style="width: 6%; text-align: right" title="Net revenues">13,240</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zjfpx9A1tbYe" style="width: 6%; text-align: right" title="Net revenues">7,495</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember_zaoJa0zVUxvb" style="width: 6%; text-align: right" title="Net revenues">10,076</td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1.5pt">Time and materials</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zPuiOTfbkRX4" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0606">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zdkaN8tqPio9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues">2,675</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_986_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember_z1cZTrfS0QLf" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues">2,675</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zzXdvdI9qtu5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0612">&#8212;</span></span></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember_zPPI6L00S71l" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues">13,057</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4nPmUQFZGYf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues">8,436</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_znpiiV2LFe87" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues">15,915</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zq6926s7aiKc" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues">7,495</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zFDtOHx8WARf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues">15,638</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331_zsFdwRwklUu9" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues">23,133</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td>Revenue by generator</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="text-align: right">&#160;</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">(In thousands)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center">Three Months Ended</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center">Three Months Ended</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center">March 31, 2021</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Treatment</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Services</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Total</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Total</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 40%; text-align: left">Domestic government</td><td style="width: 2%">&#160;</td>
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    <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember_zek4bjrmT7Cj" style="width: 6%; text-align: right" title="Net revenues">14,060</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Domestic commercial</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Foreign government</td><td>&#160;</td>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span><span id="xdx_8B6_zZsYp0Benrya" style="display: none">Schedule Of Contract   Liabilities</span></span><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.</p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516807931336">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_402_eus-gaap--FinanceLeaseRightOfUseAssetAmortization_pn3n3_maFLzRjv_zIyafWuLlNJ1" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">47</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr id="xdx_403_eus-gaap--FinanceLeaseInterestExpense_pn3n3_maFLzRjv_z7GvUJuxGP24" style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Interest on lease liability</td><td style="padding-bottom: 1.5pt">&#160;</td>
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  <tr id="xdx_404_ecustom--FinanceLease_iT_pn3n3_mtFLzRjv_maLCzrDO_zYIsQvIYO46f" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr id="xdx_409_eus-gaap--ShortTermLeaseCost_pn3n3_maLCzrDO_z3g2Iennt7V" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left; padding-bottom: 2.5pt">Total lease cost</td><td style="padding-bottom: 2.5pt">&#160;</td>
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  </table>

<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_PESI_ScheduleOfWeightedAverageLeaseTableTextBlock', window );">Schedule Of Weighted Average Lease</a></td>
<td class="text"><p id="xdx_896_ecustom--ScheduleOfWeightedAverageLeaseTableTextBlock_z9Y5QjFrqDP" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2022 were:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span><span id="xdx_8B0_zfV5GUIU0Q0j" style="display: none">Schedule Of Weighted Average Lease</span></span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%">
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
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    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Finance Leases</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: left">Weighted average remaining lease terms (years)</td><td style="width: 2%">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_904_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20220331_zuftDJXnouY4" title="Finance leases, weighted average discount rate">6.1</span></td><td style="text-align: left">%</td></tr>
  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2021 were:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%">
  <tr style="vertical-align: bottom">
    <td style="text-align: right">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Operating Leases</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Finance Leases</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: left">Weighted average remaining lease terms (years)</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td style="width: 16%; text-align: right"><span id="xdx_90A_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zx0pgyEun3F3" title="Operating leases, weighted average remaining lease terms (years)">7.8</span></td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_901_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zpAYXHNvJB4l" title="Operating leases, weighted average discount rate">7.8</span></td><td style="text-align: left">%</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span id="xdx_90D_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zA9EJiJWBnc9" title="Finance leases, weighted average discount rate">6.8</span></td><td style="text-align: left">%</td></tr>
  </table>

<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_PESI_OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock', window );">Schedule Of Operating And Finance Lease Liability Maturity</a></td>
<td class="text"><p id="xdx_898_ecustom--OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_znafRXLUOFpk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2022 to the operating and finance
lease liabilities recorded on the balance sheet (in thousands):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span><span id="xdx_8B5_zsrRKozKOYkl" style="display: none">Schedule Of Operating And Finance Lease Liability Maturity</span></span>&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="font-size: 11pt; text-align: right">&#160;</td><td>&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Operating Leases</td><td>&#160;</td><td>&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Finance Leases</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: right">2022 (Remaining)</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_zuc6FRH5Wste" style="width: 16%; text-align: right" title="Operating Leases 2022">433</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_znzuHA5YDdU8" style="width: 16%; text-align: right" title="Finance Leases 2022">315</td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2023</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zXvD26aAJZ0e" style="text-align: right" title="Operating Leases 2023">560</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zbijyDZ2RL58" style="text-align: right" title="Finance Leases 2023">327</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">2024</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zKwzUCcxmmFf" style="text-align: right" title="Operating Leases 2024">419</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zIjOyYXMjBH9" style="text-align: right" title="Finance Leases 2024">323</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2025</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_985_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zW7gkK12YBx5" style="text-align: right" title="Operating Leases 2025">328</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zFxYKUIridpg" style="text-align: right" title="Finance Leases 2025">300</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">2026</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20220331_zIYpb73EoZKd" style="text-align: right" title="Operating Leases 2026">304</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20220331_ziiE6r4L1FF3" style="text-align: right" title="Finance Leases 2026">171</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">2027 and thereafter</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_982_ecustom--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_iI_pn3n3_c20220331_zjVwKV2RGMv3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases 2027 and thereafter">955</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98D_ecustom--FinanceLeaseLiabilityPaymentsDueAfterYearFour_iI_pn3n3_c20220331_zuD3bEpnS7Tl" style="border-bottom: Black 1.5pt solid; text-align: right" title="2027 and thereafter Finance Leases">20</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: right">Total undiscounted lease payments</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_zwV3XZJqjire" style="text-align: right" title="Operating Leases Total undiscounted lease payments">2,999</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--FinanceLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_ztEka6B65A7c" style="text-align: right" title="Finance Leases Total undiscounted lease payments">1,456</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: right">Less: Imputed interest</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zCYzTZfO5lai" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases Less: Imputed interest">(662</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--FinanceLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zEBDItBDIfc2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Finance Leases Less: Imputed interest">(182</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt; text-align: right">Present value of lease payments</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98F_eus-gaap--OperatingLeaseLiability_iI_pn3n3_c20220331_z84OoepTK8N1" style="border-bottom: Black 2.5pt double; text-align: right" title="Operating Leases Present value of lease payments">2,337</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98E_eus-gaap--FinanceLeaseLiability_iI_pn3n3_c20220331_zUrfRlxVhUKj" style="border-bottom: Black 2.5pt double; text-align: right" title="Finance Leases Present value of lease payments">1,274</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 0pt; text-align: left">Current portion of operating lease obligations</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_c20220331_z8gTa0fgsguj" style="text-align: right" title="Current portion of operating lease obligations">416</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">&#8212;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-left: 0pt; text-align: left">Long-term operating lease obligations, less current portion</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z2ohNXwmiEed" style="text-align: right" title="Long-term operating lease obligations, less current portion">1,921</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td style="text-align: right">&#8212;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock', window );">Schedule Of Supplemental Cash Flow And Other Information Related To Leases</a></td>
<td class="text"><p id="xdx_89D_ecustom--ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock_zISe4Tmokw69" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Supplemental
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<p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span><span id="xdx_8BB_zU3mxFMNXfbg" style="display: none">Schedule Of Supplemental Cash Flow And Other Information Related To Leases</span></span>&#160;</span></p>

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<span></span>
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<tr class="re">
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<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 40%; margin-right: auto">
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516807939848">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans, Warrants and Stock Based Compensation (Tables)<br></strong></div></th>
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</tr>
<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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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_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock', window );">Schedule of Share-based Compensation, Allocation of Recognized Period Costs</a></td>
<td class="text"><p id="xdx_891_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_zZ7l8vP4X9Sk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following table summarizes stock-based compensation recognized for the three months ended March 31, 2022 and 2021 for our employee
and director stock options.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B9_zf0Op0JaM8Va">Schedule of Share-based Compensation, Allocation of Recognized Period Costs</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto">
  <tr style="display: none; vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: center">&#160;</td>
    <td id="xdx_497_20220101__20220331_zciVlLv55sl9" style="text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2022</span></td>
    <td colspan="4" id="xdx_49D_20210101__20210331_zBFDJTzAv4J8" style="text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">2021</span></td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td>&#160;</td>
    <td colspan="6" style="text-align: center">Three Months Ended</td><td>&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">Stock Options</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center">March 31,</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr style="vertical-align: bottom">
    <td>&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">2021</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_z0tTW1ZvRoP3" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 60%; text-align: left">Employee Stock Options</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">86,000</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">33,000</td><td style="width: 1%; text-align: left">&#160;</td></tr>
  <tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__custom--DirectorStockOptionsMember_zJFq6BWwrHfl" style="vertical-align: bottom; background-color: White">
    <td style="text-align: left; padding-bottom: 1.5pt">Director Stock Options</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">16,000</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right">12,000</td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_40C_eus-gaap--ShareBasedCompensation_pp0p0_zPg7uLhKKIQi" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">102,000</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">45,000</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

<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_us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock', window );">Schedule of Stock Options Roll Forward</a></td>
<td class="text"><p id="xdx_899_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_zKMftzGNWgzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
summary of the Company&#8217;s total Stock Option Plans as of March 31, 2022 and March 31, 2021, and changes during the periods then
ended, are presented below. The Company&#8217;s Plans consist of the 2010 Stock Option Plan, the 2017 Plan and the 2003 Outside Directors
Stock Plan (&#8220;2003 Plan&#8221;):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;<span id="xdx_8B3_zGexHXxMdvdc">Schedule of Stock Options Roll Forward</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="text-align: center; font-size: 11pt">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares</td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average</p>
                                                                                 <p style="margin-top: 0; margin-bottom: 0">Exercise</p>
                                               <p style="margin-top: 0; margin-bottom: 0">Price</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average Remaining Contractual Term</p>
                                               <p style="margin-top: 0; margin-bottom: 0">(years)</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate Intrinsic</span></p>
                                                                                <p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Value <sup>(3)</sup></span></p></td><td style="text-align: center">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 36%">Options outstanding January 1, 2022</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zBnupvDi178k" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning">1,019,400</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zR57pyXxzDNe" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning">4.91</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%; font-size: 11pt">&#160;</td>
    <td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td style="width: 12%; font-size: 11pt; text-align: right">&#160;</td><td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td style="width: 2%; font-size: 11pt">&#160;</td>
    <td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zZ60FR03C1F3" style="width: 12%; font-size: 11pt; text-align: right"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0904">&#8212;</span></span></td><td style="width: 1%; font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Granted</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z85qphEsxjLe" style="text-align: right" title="Shares Options Granted"><span style="-sec-ix-hidden: xdx2ixbrl0906">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z4rJ1nyeI8cg" style="text-align: right" title="Weighted Average Exercise Price Options Granted"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl0908">&#8212;</span></span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>Exercised</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_988_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zCUT3hQvTB64" style="text-align: right" title="Shares Options Exercised"><span style="-sec-ix-hidden: xdx2ixbrl0910">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zMLmIAoSNLl9" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"> <span style="-sec-ix-hidden: xdx2ixbrl0912">&#8212;</span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_za7QRWDr63R6" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"> <span style="-sec-ix-hidden: xdx2ixbrl0914">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td>Forfeited/expired</td><td>&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zrddeIfFX8d1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"><span style="-sec-ix-hidden: xdx2ixbrl0916">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zmXYGPBN9Sk9" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"> <span style="-sec-ix-hidden: xdx2ixbrl0918">&#8212;</span></td><td style="text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt">&#160;</td>
    <td style="font-size: 11pt; text-align: left">&#160;</td><td style="font-size: 11pt; text-align: right">&#160;</td><td style="font-size: 11pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt"><span id="xdx_F47_zzZqb6Xy70v5" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options outstanding end of period <sup>(1)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zniXrCH4gYP" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending">1,019,400</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zP3LnAyLNWsj" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending">4.91</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zG1KnhiNbsDe" title="Weighted Average Remaining Contractual Term (years) Outstanding">3.8</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zzYqUU3jlLwb" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding">1,150,167</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options exercisable at March 31, 2022<sup>(1)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zX6Qq4BvQii8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable">455,900</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zAUBqlIBm0la" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable">3.92</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zf3RRtALAk1i" title="Weighted Average Remaining Contractual Term (years) Exercisable">2.5</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zM17wIG7Kgsc" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable">779,362</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  </table>

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

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">Shares</td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">Exercise</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">Price</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0">Weighted Average Remaining Contractual Term</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">(years)</p></td><td style="text-align: center">&#160;</td><td style="text-align: center">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"><p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Aggregate Intrinsic</span></p>
                                                                                <p style="margin-top: 0; margin-bottom: 0"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Value <sup>(3)</sup></span></p></td><td style="text-align: center">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 36%">Options outstanding January 1, 2021</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zWGv26fURg1f" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning">658,400</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
    <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z2FC3V42NRc4" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning">3.87</td><td style="width: 1%; text-align: left">&#160;</td><td style="width: 2%">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options outstanding end of period <sup>(2)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zd5LSNN9HwEg" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending">658,400</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zkYDXDP3dc4d" title="Weighted Average Remaining Contractual Term (years) Outstanding">3.2</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zjdRDneHpAn2" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding">2,279,267</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options exercisable at March 31, 2021<sup>(2)</sup></span></td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left"/><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zW7LVcINXNFb" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable">392,400</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zPq6nI7IYz9c" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable">4.08</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt; text-align: right"><span id="xdx_904_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zKIrooMQsWzd" title="Weighted Average Remaining Contractual Term (years) Exercisable">3.4</span></td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="padding-bottom: 2.5pt; text-align: left">$</td><td id="xdx_98F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zMjYIuwYyA3f" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable">1,274,287</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"/></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F08_z9QYmHIkyEoa">(1)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F14_zLu3Zn4pXAJ9" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options with exercise prices ranging from $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zHT1zo76Muk9">2.79</span> to $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zU4ULxF2fla8">7.50</span></span></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
<tr style="vertical-align: top">
  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F04_zUaGm5wINbog">(2)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F1B_zWiupfNXaw8d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Options with exercise prices ranging from $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zeAzSUEIt1l8">2.79</span> to $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zZx5cRh1uPv6">7.29</span></span></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt">
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  <td style="text-align: justify; width: 0.25in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F08_zKi1SVHksv6">(3)</sup></span></td>
  <td style="text-align: justify"><span id="xdx_F14_zZcG4PzUoJda" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The intrinsic value of a stock option is the amount by which
the market value of the underlying stock exceeds the exercise price of the option.</span></td></tr>
</table>


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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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804487592">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Loss Per Share (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></a></td>
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loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted
loss per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding
common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive loss earnings per
shares. The following table reconciles the loss and average share amounts used to compute both basic and diluted loss per share:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B2_zUu3VX1Zftui">Schedule
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    <td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt">Net loss attributable to Perma-Fix Environmental Services,
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    <td style="text-decoration: underline"/><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left; padding-bottom: 2.5pt">Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(.10</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(.09</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-decoration: underline"/><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
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    <td style="text-align: left; padding-bottom: 2.5pt">Diluted loss per share attributable to Perma-Fix Environmental Services, Inc.
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    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(.10</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt">&#160;</td>
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    <td style="text-decoration: underline"><span style="text-decoration: underline"/></td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_405_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasic_pid_zxpt3LHpbEjc" style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="padding-left: 10pt; text-align: left">Add: dilutive effect of stock options</td><td>&#160;</td>
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  <tr id="xdx_400_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_zf6twMdGVhQ" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt">Add: dilutive effect of warrants</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1026">&#8212;</span></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td style="border-bottom: Black 1.5pt solid; text-align: left">&#160;</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1027">&#8212;</span></td><td style="padding-bottom: 1.5pt; text-align: left">&#160;</td></tr>
  <tr id="xdx_40D_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_pid_zGH3C5nisuX2" style="vertical-align: bottom; background-color: White">
    <td style="padding-bottom: 2.5pt">Diluted weighted average shares outstanding</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">&#160;</td><td style="border-bottom: Black 2.5pt double; text-align: right">13,234</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td><td style="padding-bottom: 2.5pt">&#160;</td>
    <td style="border-bottom: Black 2.5pt double; text-align: left">&#160;</td><td style="border-bottom: Black 2.5pt double; text-align: right">12,165</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td>&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Potential shares excluded from above weighted average share calculations due to their anti-dilutive
    effect include:</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">&#160;</td><td style="text-align: left">&#160;</td></tr>
  <tr id="xdx_40B_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pid_z3L0kgKZrer2" style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Stock options</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">405</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right">30</td><td style="text-align: left">&#160;</td></tr>
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    <td>Warrant</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1035">&#8212;</span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td style="text-align: right"><span style="-sec-ix-hidden: xdx2ixbrl1036">&#8212;</span></td><td style="text-align: left">&#160;</td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from 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/2009/role/commonPracticeRef<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 https://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br></p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804466888">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Long Term Debt (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></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_us-gaap_ScheduleOfDebtInstrumentsTextBlock', window );">Schedule of Long Term Debt</a></td>
<td class="text"><p id="xdx_89A_eus-gaap--ScheduleOfDebtInstrumentsTextBlock_zfiFJSy0V146" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Long-term
debt consists of the following:</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"><span id="xdx_8B7_zj5sDZULO0x4">Schedule of Long Term Debt</span></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
  <tr style="vertical-align: bottom">
    <td style="border-bottom: Black 1.5pt solid">(Amounts in Thousands)</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">March 31, 2022</td><td style="padding-bottom: 1.5pt">&#160;</td><td style="padding-bottom: 1.5pt">&#160;</td>
    <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center">December 31, 2021</td><td style="padding-bottom: 1.5pt">&#160;</td></tr>
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    <td style="text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Revolving Credit</b> facility
    dated May 8, 2020, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due
    on <span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_z5J55u5m5Nqb" title="Debt due date">May 15, 2024</span>. Effective interest rate for first quarter of 2022 was <span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220331__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_zJXS2qyQ8Zp3" title="Effective interest rate">0</span>%. <sup>(1) </sup></span></td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zIL66X3BRTy7" style="text-align: right" title="Total debt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl1046">&#8212;</span></span></td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--LongTermDebt_iI_pn3n3_c20211231__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zdXkub4NdCZ2" style="text-align: right" title="Total debt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><span style="-sec-ix-hidden: xdx2ixbrl1048">&#8212;</span></span></td><td style="text-align: left">&#160;</td></tr>
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    <td style="text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b id="xdx_F43_ztplLFkxIjYj">Term Loan</b> dated May
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -31.5pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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<td id="xdx_F02_zesljS6BxGE9" style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup>(1)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F1C_zF2e3Et7L9F6" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</span></td>
</tr>
<tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F09_zVqwt9WDf1z3">(2)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F10_zzrb1I02XJtd" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net of debt issuance
costs of ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1">120,000</span>) and ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4">112,000</span>) at March 31, 2022 and December 31, 2021, respectively.</span></td>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804412280">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Discontinued Operations (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</div></th></tr>
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following table presents the major class of assets of discontinued operations as of March 31, 2022 and December 31, 2021. No assets and
liabilities were held for sale at each of the periods noted.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

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    <td style="font-weight: bold; text-align: left">Current assets</td><td>&#160;</td>
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    <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,183</td><td style="padding-bottom: 2.5pt; text-align: left">&#160;</td></tr>
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<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F05_zgSmrax4Gsb3">(1)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F1E_zN7wpQQcq0a7" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">net of accumulated
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804406632">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Operating Segments (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2022</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_SegmentReportingAbstract', window );"><strong>Segment Reporting [Abstract]</strong></a></td>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock', window );">Schedule of Segment Reporting Information</a></td>
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table below presents certain financial information of our operating segments for the three months ended March 31, 2022 and 2021 (in thousands):</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Segment
Reporting for the Quarter Ended March 31, 2022</b></span></p>

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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td id="xdx_987_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zB9BSVTilSN9" style="text-align: right" title="Revenue from external customers">71</td><td style="text-align: left">&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zQxFK0DjGceg" style="text-align: right" title="Revenue from external customers">442</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98E_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zUP5lkYAZ722" style="text-align: right" title="Revenue from external customers">14</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98B_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331_zCHlWzCi5zMd" style="text-align: right" title="Revenue from external customers">456</td><td style="text-align: left">&#160;</td></tr>
  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Segment (loss) income before income taxes</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zj17NbyD8Nn" style="text-align: right" title="Revenue from external customers">(481</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z0LzgN06svCk" style="text-align: right" title="Revenue from external customers">285</td><td style="text-align: left">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_98C_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zihgg6y0QbFc" style="text-align: right" title="Revenue from external customers">(196</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zFhtA9tB0Ath" style="text-align: right" title="Revenue from external customers">(1,726</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_980_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331_zhlACV9TSdr4" style="text-align: right" title="Revenue from external customers">(1,922</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
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    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zNh8gC1x3JJ" style="text-align: right" title="Revenue from external customers">(114</td><td style="text-align: left">)</td>
    <td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_980_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zManwkKcJKe4" style="text-align: right" title="Revenue from external customers">(673</td><td style="text-align: left">)</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_ze3ImTC0YLoh" style="font-weight: bold; text-align: right" title="Revenue from external customers"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1296">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Segment income (loss)</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_ztXXNCWlM249" style="text-align: right" title="Revenue from external customers">399</td><td style="text-align: left">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zOy3h5gWoPX" style="text-align: right" title="Revenue from external customers">477</td><td style="text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_982_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zj5Z5ooFZj6a" style="text-align: right" title="Revenue from external customers">(1,726</td><td style="text-align: left">)</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331_z8tdtxT8REib" style="text-align: right" title="Revenue from external customers">(1,249</td><td style="text-align: left">)</td></tr>
  <tr style="vertical-align: bottom; background-color: White">
    <td style="text-align: left">Expenditures for segment assets</td><td>&#160;</td>
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    <td style="text-align: left">&#160;</td><td id="xdx_981_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z1FOW1K5E7qc" style="text-align: right" title="Revenue from external customers">49</td><td style="text-align: left">&#160;</td>
    <td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zgr7vqbxziil" style="text-align: right" title="Revenue from external customers">345</td><td style="text-align: left">&#160;</td><td style="font-weight: bold">&#160;</td>
    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z4CvqwyVQXTl" style="font-weight: bold; text-align: right" title="Revenue from external customers"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1316">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_984_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331_fKDIp_zuB314UiONp6" style="text-align: right" title="Revenue from external customers">345</td><td style="text-align: left"><sup>(2)</sup></td></tr>
  </table>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Segment
Reporting for the Quarter Ended March 31, 2021</b></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#160;</span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%">
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="text-align: left">Interest income</td><td style="font-weight: bold">&#160;</td>
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  <tr style="vertical-align: bottom; background-color: White">
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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  <tr style="vertical-align: bottom; background-color: White">
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    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_98F_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Depreciation and amortization"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1408">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
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  <tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
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    <td style="font-weight: bold; text-align: left">&#160;</td><td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Expenditures for segment assets (net)"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="-sec-ix-hidden: xdx2ixbrl1460">&#8212;</span></b></span></td><td style="font-weight: bold; text-align: left">&#160;</td><td>&#160;</td>
    <td style="text-align: left">&#160;</td><td id="xdx_988_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20210101__20210331_fKDIp_zPlxDVMCAna1" style="text-align: right" title="Expenditures for segment assets (net)">361</td><td style="text-align: left"><sup>(2)</sup></td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-indent: -27pt"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>&#160;</b></span></p>

<table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F0C_zPLXrK3WN3Y1">(1)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F1B_zaKTVodTNF4h" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Amounts reflect
the activity for corporate headquarters not included in the segment information.</span></td>
</tr>
<tr style="vertical-align: top; text-align: justify">
<td style="text-align: left">&#160;</td><td>&#160;</td><td style="text-align: justify">&#160;</td></tr>
<tr style="vertical-align: top; text-align: justify">
<td style="width: 15pt; text-align: left"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><sup id="xdx_F00_z4sPfA1Lyvub">(2)</sup></span></td><td style="width: 5pt"/><td style="text-align: justify"><span id="xdx_F19_zVs4s7kjvoVl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net of financed
amount of $<span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure">114,000</span> and $<span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg">29,000</span> for the three months ended March 31, 2022 and 2021, respectively.</span></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.</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 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 25<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8813-108599<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> -URI https://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 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8906-108599<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sales of interest percentage.</p></div>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516797701064">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule Of Disaggregation Of Revenue (Details) - USD ($)<br> $ in Thousands</strong></div></th>
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<td class="text">&#160;<span></span>
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<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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">1,598<span></span>
</td>
<td class="nump">2,855<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_MajorCustomersAxis=PESI_ForeignGovernmentMember', window );">Foreign Government [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">98<span></span>
</td>
<td class="nump">2,898<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_MajorCustomersAxis=PESI_ForeignCommercialMember', window );">Foreign Commercial [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">159<span></span>
</td>
<td class="nump">121<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=PESI_TreatmentMember', window );">Treatment [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">7,479<span></span>
</td>
<td class="nump">7,495<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=PESI_TreatmentMember', window );">Treatment [Member] | Domestic Government [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">5,815<span></span>
</td>
<td class="nump">4,598<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=PESI_TreatmentMember', window );">Treatment [Member] | Domestic Commercial [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">1,436<span></span>
</td>
<td class="nump">2,265<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=PESI_TreatmentMember', window );">Treatment [Member] | Foreign Government [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">92<span></span>
</td>
<td class="nump">534<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=PESI_TreatmentMember', window );">Treatment [Member] | Foreign Commercial [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">136<span></span>
</td>
<td class="nump">98<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=PESI_ServicesMember', window );">Services [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">8,436<span></span>
</td>
<td class="nump">15,638<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=PESI_ServicesMember', window );">Services [Member] | Domestic Government [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">8,245<span></span>
</td>
<td class="nump">12,661<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=PESI_ServicesMember', window );">Services [Member] | Domestic Commercial [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">162<span></span>
</td>
<td class="nump">590<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=PESI_ServicesMember', window );">Services [Member] | Foreign Government [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">6<span></span>
</td>
<td class="nump">2,364<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=PESI_ServicesMember', window );">Services [Member] | Foreign Commercial [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">23<span></span>
</td>
<td class="nump">23<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_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember', window );">Fixed Price [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">13,240<span></span>
</td>
<td class="nump">10,076<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_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember', window );">Fixed Price [Member] | Treatment [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">7,479<span></span>
</td>
<td class="nump">7,495<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_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember', window );">Fixed Price [Member] | Services [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">5,761<span></span>
</td>
<td class="nump">2,581<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_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember', window );">Time and Materials [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">2,675<span></span>
</td>
<td class="nump">13,057<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_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember', window );">Time and Materials [Member] | Treatment [Member]</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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember', window );">Time and Materials [Member] | Services [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_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Net revenues</a></td>
<td class="nump">$ 2,675<span></span>
</td>
<td class="nump">$ 13,057<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_DisaggregationOfRevenueLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_DisaggregationOfRevenueLineItems</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_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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126920106&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126920106&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 https://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_MajorCustomersAxis=PESI_DomesticGovernmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_MajorCustomersAxis=PESI_DomesticGovernmentMember</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_MajorCustomersAxis=PESI_DomesticCommercialMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_MajorCustomersAxis=PESI_DomesticCommercialMember</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_MajorCustomersAxis=PESI_ForeignGovernmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_MajorCustomersAxis=PESI_ForeignGovernmentMember</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_MajorCustomersAxis=PESI_ForeignCommercialMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_MajorCustomersAxis=PESI_ForeignCommercialMember</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=PESI_TreatmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_TreatmentMember</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=PESI_ServicesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_ServicesMember</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_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ConcentrationRiskByBenchmarkAxis=PESI_FixedPriceMember</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_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ConcentrationRiskByBenchmarkAxis=PESI_TimeandMaterialsMember</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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<SEQUENCE>44
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<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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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516800885784">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule Of Contract Liabilities (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></a></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_us-gaap_DeferredRevenueCurrent', window );">Deferred revenue</a></td>
<td class="nump">$ 2,707<span></span>
</td>
<td class="nump">$ 5,580<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_AwardDateAxis=PESI_YearToDateChangesMember', window );">Year-to-date Change [Member]</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></a></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_us-gaap_IncreaseDecreaseInContractWithCustomerLiability', window );">Changes in deferred revenue</a></td>
<td class="num">$ (2,873)<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_PESI_ChangesInDeferredRevenuePercentage', window );">Changes in deferred revenue, percentage</a></td>
<td class="num">(51.50%)<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_PESI_ChangesInDeferredRevenuePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 change in deferred revenue.</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;">PESI_ChangesInDeferredRevenuePercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_DeferredRevenueCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 deferred income and obligation to transfer product and 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/2009/role/commonPracticeRef<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 https://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_DeferredRevenueCurrent</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_IncreaseDecreaseInContractWithCustomerLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 obligation to transfer good or service to customer for which consideration has been received or is 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/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 (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 912<br> -SubTopic 310<br> -Section 45<br> -Paragraph 11<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126938201&amp;loc=d3e55415-109406<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_IncreaseDecreaseInContractWithCustomerLiability</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</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_AwardDateAxis=PESI_YearToDateChangesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AwardDateAxis=PESI_YearToDateChangesMember</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>45
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<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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804510184">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Revenue (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerAbstract', window );"><strong>Revenue from Contract with Customer [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized', window );">Revenue recognized</a></td>
<td class="nump">$ 3,521,000<span></span>
</td>
<td class="nump">$ 4,311,000<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_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 https://asc.fasb.org/extlink&amp;oid=126920106&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_RevenueFromContractWithCustomerAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_RevenueFromContractWithCustomerAbstract</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>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>46
<FILENAME>R36.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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516797632024">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule Of Components Of Lease Cost (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_PESI_DisclosureLeasesAbstract', window );"><strong>Leases</strong></a></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_us-gaap_OperatingLeaseCost', window );">Lease cost</a></td>
<td class="nump">$ 157<span></span>
</td>
<td class="nump">$ 111<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_us-gaap_FinanceLeaseRightOfUseAssetAmortization', window );">Amortization of ROU assets</a></td>
<td class="nump">47<span></span>
</td>
<td class="nump">59<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_us-gaap_FinanceLeaseInterestExpense', window );">Interest on lease liability</a></td>
<td class="nump">11<span></span>
</td>
<td class="nump">19<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_PESI_FinanceLease', window );">Finance leases</a></td>
<td class="nump">58<span></span>
</td>
<td class="nump">78<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_us-gaap_ShortTermLeaseCost', window );">Short-term lease rent expense</a></td>
<td class="nump">3<span></span>
</td>
<td class="nump">3<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" 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">$ 218<span></span>
</td>
<td class="nump">$ 192<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisclosureLeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">PESI_DisclosureLeasesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_FinanceLease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Finance Leases.</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;">PESI_FinanceLease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_FinanceLeaseInterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 interest expense on finance 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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=128292326&amp;loc=SL77918686-209980<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 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918638-209977<br><br>Reference 3: 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 https://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_FinanceLeaseInterestExpense</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_FinanceLeaseRightOfUseAssetAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 amortization expense attributable to right-of-use asset 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 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=128292326&amp;loc=SL77918686-209980<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 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918638-209977<br><br>Reference 3: 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 https://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_FinanceLeaseRightOfUseAssetAmortization</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_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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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>47
<FILENAME>R37.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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516800875080">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Schedule Of Weighted Average Lease (Details)<br></strong></div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_PESI_DisclosureLeasesAbstract', window );"><strong>Leases</strong></a></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_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1', window );">Operating leases, weighted average remaining lease terms (years)</a></td>
<td class="text">6 years 8 months 12 days<span></span>
</td>
<td class="text">7 years 9 months 18 days<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_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1', window );">Finance leases, weighted average remaining lease terms (years)</a></td>
<td class="text">4 years<span></span>
</td>
<td class="text">3 years 4 months 24 days<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_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent', window );">Operating leases, weighted average discount rate</a></td>
<td class="nump">7.60%<span></span>
</td>
<td class="nump">7.80%<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_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent', window );">Finance leases, weighted average discount rate</a></td>
<td class="nump">6.10%<span></span>
</td>
<td class="nump">6.80%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisclosureLeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">PESI_DisclosureLeasesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_FinanceLeaseWeightedAverageDiscountRatePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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_FinanceLeaseWeightedAverageDiscountRatePercent</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_FinanceLeaseWeightedAverageRemainingLeaseTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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/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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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_FinanceLeaseWeightedAverageRemainingLeaseTerm1</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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>48
<FILENAME>R38.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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516808766440">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Schedule Of Operating And Finance Lease Liability Maturity (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_PESI_DisclosureLeasesAbstract', window );"><strong>Leases</strong></a></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_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear', window );">Operating Leases 2022</a></td>
<td class="nump">$ 433<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_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear', window );">Finance Leases 2022</a></td>
<td class="nump">315<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_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths', window );">Operating Leases 2023</a></td>
<td class="nump">560<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_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths', window );">Finance Leases 2023</a></td>
<td class="nump">327<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_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo', window );">Operating Leases 2024</a></td>
<td class="nump">419<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_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo', window );">Finance Leases 2024</a></td>
<td class="nump">323<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_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree', window );">Operating Leases 2025</a></td>
<td class="nump">328<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_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree', window );">Finance Leases 2025</a></td>
<td class="nump">300<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_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour', window );">Operating Leases 2026</a></td>
<td class="nump">304<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_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour', window );">Finance Leases 2026</a></td>
<td class="nump">171<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_PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour', window );">Operating Leases 2027 and thereafter</a></td>
<td class="nump">955<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_PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour', window );">2027 and thereafter Finance Leases</a></td>
<td class="nump">20<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_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue', window );">Operating Leases Total undiscounted lease payments</a></td>
<td class="nump">2,999<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_us-gaap_FinanceLeaseLiabilityPaymentsDue', window );">Finance Leases Total undiscounted lease payments</a></td>
<td class="nump">1,456<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_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount', window );">Operating Leases Less: Imputed interest</a></td>
<td class="num">(662)<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_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount', window );">Finance Leases Less: Imputed interest</a></td>
<td class="num">(182)<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_us-gaap_OperatingLeaseLiability', window );">Operating Leases Present value of lease payments</a></td>
<td class="nump">2,337<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_us-gaap_FinanceLeaseLiability', window );">Finance Leases Present value of lease payments</a></td>
<td class="nump">1,274<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_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current portion of operating lease obligations</a></td>
<td class="nump">416<span></span>
</td>
<td class="nump">$ 406<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_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Long-term operating lease obligations, less current portion</a></td>
<td class="nump">1,921<span></span>
</td>
<td class="nump">2,029<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_us-gaap_FinanceLeaseLiabilityCurrent', window );">Current portion of finance lease obligations</a></td>
<td class="nump">354<span></span>
</td>
<td class="nump">333<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_us-gaap_FinanceLeaseLiabilityNoncurrent', window );">Long-term finance lease obligations, less current portion</a></td>
<td class="nump">$ 920<span></span>
</td>
<td class="nump">$ 884<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisclosureLeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">PESI_DisclosureLeasesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Finance Lease Liability Payments Due After Year Four.</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;">PESI_FinanceLeaseLiabilityPaymentsDueAfterYearFour</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Lessee Operating Lease Liability Payments Due After Year Four.</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;">PESI_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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_FinanceLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, 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 https://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_FinanceLeaseLiabilityCurrent</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_FinanceLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, 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 https://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_FinanceLeaseLiabilityNoncurrent</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_FinanceLeaseLiabilityPaymentsDue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 for 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityPaymentsDue</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_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths</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_FinanceLeaseLiabilityPaymentsDueYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityPaymentsDueYearFour</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_FinanceLeaseLiabilityPaymentsDueYearThree">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityPaymentsDueYearThree</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_FinanceLeaseLiabilityPaymentsDueYearTwo">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityPaymentsDueYearTwo</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_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance lease 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear</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_FinanceLeaseLiabilityUndiscountedExcessAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeaseLiabilityUndiscountedExcessAmount</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_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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://asc.fasb.org/extlink&amp;oid=128292326&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 https://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 https://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 https://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>
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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>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516800886152">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule Of Supplemental Cash Flow And Other Information Related To Leases (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_PESI_DisclosureLeasesAbstract', window );"><strong>Leases</strong></a></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_us-gaap_OperatingLeasePayments', window );">Operating cash flow from operating leases</a></td>
<td class="nump">$ 143<span></span>
</td>
<td class="nump">$ 101<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_us-gaap_FinanceLeaseInterestExpense', window );">Operating cash flow from finance leases</a></td>
<td class="nump">11<span></span>
</td>
<td class="nump">19<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_us-gaap_FinanceLeasePrincipalPayments', window );">Financing cash flow from finance leases</a></td>
<td class="nump">58<span></span>
</td>
<td class="nump">114<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_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability', window );">Finance liabilities</a></td>
<td class="nump">147<span></span>
</td>
<td class="text"> <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_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability', window );">Operating liabilities</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
</table>
<div style="display: none;">
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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;">PESI_DisclosureLeasesAbstract</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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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FinanceLeaseInterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 interest expense on finance 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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=128292326&amp;loc=SL77918686-209980<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 4<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=123391704&amp;loc=SL77918638-209977<br><br>Reference 3: 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 https://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_FinanceLeaseInterestExpense</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_FinanceLeasePrincipalPayments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 for principal payment on 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 45<br> -Paragraph 5<br> -Subparagraph (a)<br> -URI https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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_FinanceLeasePrincipalPayments</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_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 https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 finance 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 https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability</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_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 https://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 https://asc.fasb.org/extlink&amp;oid=128292326&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>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516800782152">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule Of Definite Lived Intangible Assets (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_FiniteLivedIntangibleAssetsLineItems', window );"><strong>Finite-Lived Intangible Assets [Line Items]</strong></a></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_us-gaap_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 4,763<span></span>
</td>
<td class="nump">$ 4,749<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_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization', window );">Accumulated Amortization</a></td>
<td class="num">(3,911)<span></span>
</td>
<td class="num">(3,855)<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_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Net Carrying Amount</a></td>
<td class="nump">$ 852<span></span>
</td>
<td class="nump">894<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_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember', window );">Patents [Member]</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_FiniteLivedIntangibleAssetsLineItems', window );"><strong>Finite-Lived Intangible Assets [Line Items]</strong></a></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_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1', window );">Weighted Average Amortization Period (Years)</a></td>
<td class="text">8 years 3 months 18 days<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_us-gaap_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 787<span></span>
</td>
<td class="nump">787<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_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization', window );">Accumulated Amortization</a></td>
<td class="num">(354)<span></span>
</td>
<td class="num">(351)<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_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Net Carrying Amount</a></td>
<td class="nump">$ 433<span></span>
</td>
<td class="nump">436<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_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_SoftwareMember', window );">Software [Member]</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_FiniteLivedIntangibleAssetsLineItems', window );"><strong>Finite-Lived Intangible Assets [Line Items]</strong></a></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_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1', window );">Weighted Average Amortization Period (Years)</a></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_us-gaap_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 606<span></span>
</td>
<td class="nump">592<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_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization', window );">Accumulated Amortization</a></td>
<td class="num">(428)<span></span>
</td>
<td class="num">(415)<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_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Net Carrying Amount</a></td>
<td class="nump">$ 178<span></span>
</td>
<td class="nump">177<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_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember', window );">Customer Relationships [Member]</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_FiniteLivedIntangibleAssetsLineItems', window );"><strong>Finite-Lived Intangible Assets [Line Items]</strong></a></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_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1', window );">Weighted Average Amortization Period (Years)</a></td>
<td class="text">10 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_us-gaap_FiniteLivedIntangibleAssetsGross', window );">Gross Carrying Amount</a></td>
<td class="nump">$ 3,370<span></span>
</td>
<td class="nump">3,370<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_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization', window );">Accumulated Amortization</a></td>
<td class="num">(3,129)<span></span>
</td>
<td class="num">(3,089)<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_us-gaap_FiniteLivedIntangibleAssetsNet', window );">Net Carrying Amount</a></td>
<td class="nump">$ 241<span></span>
</td>
<td class="nump">$ 281<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_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 https://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<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(16))<br> -URI https://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_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>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FiniteLivedIntangibleAssetsGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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 928<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI https://asc.fasb.org/extlink&amp;oid=6473545&amp;loc=d3e61844-108004<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 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI https://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_FiniteLivedIntangibleAssetsGross</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_FiniteLivedIntangibleAssetsLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_FiniteLivedIntangibleAssetsLineItems</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_FiniteLivedIntangibleAssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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 926<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -URI https://asc.fasb.org/extlink&amp;oid=120154696&amp;loc=d3e54445-107959<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 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI https://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_FiniteLivedIntangibleAssetsNet</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_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 amortization period of finite-lived intangible assets, 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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 926<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5<br> -URI https://asc.fasb.org/extlink&amp;oid=120154696&amp;loc=d3e54445-107959<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_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1</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_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_PatentsMember</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_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_SoftwareMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FiniteLivedIntangibleAssetsByMajorClassAxis=PESI_SoftwareMember</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_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember</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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<DOCUMENT>
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<SEQUENCE>51
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<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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516807937064">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Intangible Assets (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract', window );"><strong>Goodwill and Intangible Assets Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AmortizationOfIntangibleAssets', window );">Amortization of intangible asset</a></td>
<td class="nump">$ 56,000<span></span>
</td>
<td class="nump">$ 50,000<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_AmortizationOfIntangibleAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect 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 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<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 50<br> -Paragraph 2<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<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 30<br> -Section 45<br> -Paragraph 2<br> -URI https://asc.fasb.org/extlink&amp;oid=6388964&amp;loc=d3e16225-109274<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_AmortizationOfIntangibleAssets</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_GoodwillAndIntangibleAssetsDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_GoodwillAndIntangibleAssetsDisclosureAbstract</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>
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</TEXT>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>52
<FILENAME>R42.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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<body>
<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516807881128">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of Share-based Compensation, Allocation of Recognized Period Costs (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensation', window );">Total</a></td>
<td class="nump">$ 102,000<span></span>
</td>
<td class="nump">$ 45,000<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_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Share-Based Payment Arrangement, Option [Member]</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></a></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_us-gaap_ShareBasedCompensation', window );">Total</a></td>
<td class="nump">86,000<span></span>
</td>
<td class="nump">33,000<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_AwardTypeAxis=PESI_DirectorStockOptionsMember', window );">Director Stock Options [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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></a></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_us-gaap_ShareBasedCompensation', window );">Total</a></td>
<td class="nump">$ 16,000<span></span>
</td>
<td class="nump">$ 12,000<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_ShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 noncash expense for 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 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&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_ShareBasedCompensation</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</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_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_AwardTypeAxis=PESI_DirectorStockOptionsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_DirectorStockOptionsMember</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>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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<body>
<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801032408">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Schedule of Stock Options Roll Forward (Details) - Equity Option [Member] - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems', window );"><strong>Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Shares Options Outstanding Beginning</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,019,400<span></span>
</td>
<td class="nump">658,400<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Outstanding Beginning</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 4.91<span></span>
</td>
<td class="nump">$ 3.87<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Shares Options Granted</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Granted</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Shares Options Exercised</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Exercised</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue', window );">Aggregate Intrinsic Value Options Exercised</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod', window );">Shares Options Forfeited/expired</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Forfeited/expired</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Shares Options Outstanding Ending</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">1,019,400<span></span>
</td>
<td class="nump">658,400<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Outstanding Ending</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">$ 4.91<span></span>
</td>
<td class="nump">$ 3.87<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_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2', window );">Weighted Average Remaining Contractual Term (years) Outstanding</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text">3 years 9 months 18 days<span></span>
</td>
<td class="text">3 years 2 months 12 days<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Aggregate Intrinsic Value Options Outstanding</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">$ 1,150,167<span></span>
</td>
<td class="nump">$ 2,279,267<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber', window );">Shares Options Exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">455,900<span></span>
</td>
<td class="nump">392,400<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">$ 3.92<span></span>
</td>
<td class="nump">$ 4.08<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_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1', window );">Weighted Average Remaining Contractual Term (years) Exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text">2 years 6 months<span></span>
</td>
<td class="text">3 years 4 months 24 days<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_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1', window );">Aggregate Intrinsic Value Options Exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">$ 779,362<span></span>
</td>
<td class="nump">$ 1,274,287<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_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Shares Options Exercised</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod', window );">Shares Options Forfeited/expired</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber', window );">Shares Options Exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">455,900<span></span>
</td>
<td class="nump">392,400<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice', window );">Weighted Average Exercise Price Options Exercisable</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">$ 3.92<span></span>
</td>
<td class="nump">$ 4.08<span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><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">Options with exercise prices ranging from $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zHT1zo76Muk9">2.79</span> to $<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zU4ULxF2fla8">7.50</span></td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">The intrinsic value of a stock option is the amount by which
the market value of the underlying stock exceeds the exercise price of the option.</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_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems</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_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://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into 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 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue</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_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://www.xbrl.org/2009/role/commonPracticeRef<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)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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://www.xbrl.org/2009/role/commonPracticeRef<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)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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>
<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_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>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<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)(01)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 https://asc.fasb.org/extlink&amp;oid=128089324&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>
</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_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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(ii)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&amp;loc=d3e5070-113901<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(ii)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&amp;loc=d3e5070-113901<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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>
</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_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>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<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)(02)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_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>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<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)(01)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_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>
</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_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 https://asc.fasb.org/extlink&amp;oid=128089324&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 https://asc.fasb.org/extlink&amp;oid=128089324&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>
<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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 https://asc.fasb.org/extlink&amp;oid=128089324&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>
</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_StockIssuedDuringPeriodSharesStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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://www.xbrl.org/2003/role/disclosureRef<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)(02)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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 https://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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126973232&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_StockIssuedDuringPeriodSharesStockOptionsExercised</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_FinancialInstrumentAxis=us-gaap_StockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FinancialInstrumentAxis=us-gaap_StockOptionMember</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>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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</html>
</TEXT>
</DOCUMENT>
<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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516807881256">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of Stock Options Roll Forward (Details) (Parenthetical)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2022 </div>
<div>$ / shares</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_us-gaap_FinancialInstrumentAxis=PESI_StockOptionOutstandingMember', window );">Stock Option Outstanding [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_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems', window );"><strong>Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</strong></a></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_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit</a></td>
<td class="nump">$ 2.79<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_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit</a></td>
<td class="nump">7.50<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_FinancialInstrumentAxis=PESI_StockOptionExercisableMember', window );">Stock Option Exercisable [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_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems', window );"><strong>Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items]</strong></a></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_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit</a></td>
<td class="nump">2.79<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_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit</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_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_DebtSecuritiesHeldtomaturityAllowanceForCreditLossLineItems</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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</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 (g)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit</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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</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 (g)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit</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_FinancialInstrumentAxis=PESI_StockOptionOutstandingMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FinancialInstrumentAxis=PESI_StockOptionOutstandingMember</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_FinancialInstrumentAxis=PESI_StockOptionExercisableMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_FinancialInstrumentAxis=PESI_StockOptionExercisableMember</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>
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<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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<body>
<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801130616">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Capital Stock, Stock Plans, Warrants and Stock Based Compensation (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Apr. 02, 2019</div></th>
<th class="th"><div>Jul. 27, 2017</div></th>
<th class="th"><div>Mar. 31, 2022</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_us-gaap_AwardTypeAxis=PESI_FergusonStockOptionMember', window );">Ferguson Stock Option [Member] | Second Milestone [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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_PESI_OptionsToPurchaseSharesOfCommonStock', window );">Options to purchase shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">30,000<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_AwardTypeAxis=PESI_FergusonStockOptionMember', window );">Ferguson Stock Option [Member] | Third Milestone [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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_PESI_OptionsToPurchaseSharesOfCommonStock', window );">Options to purchase shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">60,000<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_TitleOfIndividualAxis=PESI_RobertFergusonMember', window );">Robert Ferguson [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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized', window );">Unrecognized compensation cost related to unvested options consultant</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 289,000<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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Remaining stock option</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">90,000<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_us-gaap_LoansPayable', window );">Loans payable</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_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights', window );">Warrant to purchase</a></td>
<td class="nump">60,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1', window );">Warrants exercise price</a></td>
<td class="nump">$ 3.51<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_PESI_WarrantExercisableDescription', window );">Warrant exercisable, description</a></td>
<td class="text">The warrant expires on April 1, 2024 and remains outstanding at March 31, 2022. The Ferguson Loan was paid-in-full in
December 2020.<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_TitleOfIndividualAxis=PESI_EmployeeAndDirectorsMember', window );">Employee and 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized', window );">Unrecognized compensation cost related to unvested options consultant</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,287,000<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_PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized', window );">Weighted average term for unrecognized and unvested option to be recognized</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">4 years 1 month 6 days<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=PESI_TwoThousandAndSeventeenStockOptionPlanMember', window );">2017 Stock Option Plan [Member] | Consultant [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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross', window );">Number of stock option shares granted</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100,000<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_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice', window );">Stock options, exercise price</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3.65<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=PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember', window );">2003 Outside Directors Stock Option Plan [Member] | Common Stock [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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_us-gaap_StockIssuedDuringPeriodSharesIssuedForServices', window );">Stock Issued During Period, Shares, Issued for Services</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">19,520<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=PESI_TwoThousandTwentyManagementIncentivePlanMember', window );">2020 Management 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="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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</strong></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_us-gaap_AllocatedShareBasedCompensationExpense', window );">Allocated share-based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 120,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_OptionsToPurchaseSharesOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Options to purchase shares of common stock.</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;">PESI_OptionsToPurchaseSharesOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_WarrantExercisableDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Warrant exercisable, description.</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;">PESI_WarrantExercisableDescription</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 term for unrecognized and unvested option to be recognized.</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;">PESI_WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_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://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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_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 https://asc.fasb.org/extlink&amp;oid=126973232&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 https://asc.fasb.org/extlink&amp;oid=126973232&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_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://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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_LoansPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially 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 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI https://asc.fasb.org/extlink&amp;oid=126897435&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 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI https://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 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(16)(a)(2))<br> -URI https://asc.fasb.org/extlink&amp;oid=126734703&amp;loc=d3e572229-122910<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_LoansPayable</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</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_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>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<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)(01)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross</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_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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(ii)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&amp;loc=d3e5070-113901<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<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 https://asc.fasb.org/extlink&amp;oid=128089324&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_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>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<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)(01)<br> -URI https://asc.fasb.org/extlink&amp;oid=128089324&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_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>
</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_StockIssuedDuringPeriodSharesIssuedForServices">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.</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_StockIssuedDuringPeriodSharesIssuedForServices</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_AwardTypeAxis=PESI_FergusonStockOptionMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_FergusonStockOptionMember</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_StatementScenarioAxis=PESI_SecondMilestoneMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_SecondMilestoneMember</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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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_StatementScenarioAxis=PESI_ThirdMilestoneMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementScenarioAxis=PESI_ThirdMilestoneMember</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_TitleOfIndividualAxis=PESI_RobertFergusonMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=PESI_RobertFergusonMember</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_TitleOfIndividualAxis=PESI_EmployeeAndDirectorsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=PESI_EmployeeAndDirectorsMember</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=PESI_TwoThousandAndSeventeenStockOptionPlanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_TwoThousandAndSeventeenStockOptionPlanMember</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_TitleOfIndividualAxis=PESI_ConsultantMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=PESI_ConsultantMember</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=PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_TwoThousandThreeOutsideDirectorsStockOptionPlanMember</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_StatementClassOfStockAxis=us-gaap_CommonStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementClassOfStockAxis=us-gaap_CommonStockMember</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=PESI_TwoThousandTwentyManagementIncentivePlanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_TwoThousandTwentyManagementIncentivePlanMember</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>
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<SEQUENCE>56
<FILENAME>R46.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516797677416">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of Earning Per Share (Details) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract', window );"><strong>Net loss attributable to Perma-Fix Environmental Services, Inc., common stockholders:</strong></a></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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Loss from continuing operations, net of taxes</a></td>
<td class="num">$ (1,249)<span></span>
</td>
<td class="num">$ (1,038)<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_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Net loss attributable to non-controlling interest</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(30)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperations', window );">Loss from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">(1,249)<span></span>
</td>
<td class="num">(1,008)<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_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">(94)<span></span>
</td>
<td class="num">(115)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" 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 attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">$ (1,343)<span></span>
</td>
<td class="num">$ (1,123)<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_us-gaap_EarningsPerShareBasic', window );">Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">$ (0.10)<span></span>
</td>
<td class="num">$ (0.09)<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_us-gaap_EarningsPerShareDiluted', window );">Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders</a></td>
<td class="num">$ (0.10)<span></span>
</td>
<td class="num">$ (0.09)<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_WeightedAverageNumberOfSharesOutstandingBasicAbstract', window );"><strong>Weighted average shares outstanding:</strong></a></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_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic weighted average shares outstanding</a></td>
<td class="nump">13,234<span></span>
</td>
<td class="nump">12,165<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_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements', window );">Add: dilutive effect of stock options</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants', window );">Add: dilutive effect of warrants</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted weighted average shares outstanding</a></td>
<td class="nump">13,234<span></span>
</td>
<td class="nump">12,165<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_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Stock options</a></td>
<td class="nump">405<span></span>
</td>
<td class="nump">30<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_PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount', window );">Warrant</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Potential shares excluded from above weighted average share calculations due to their anti-dilutive effect include: Warrant.</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;">PESI_AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_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 https://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>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 net income (loss) for the period per each share of common stock or unit outstanding 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 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (e)(4)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 2: 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 3<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<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 11<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 4: 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-SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(25))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&amp;loc=SL114868664-224227<br><br>Reference 15: 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 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1252-109256<br><br>Reference 16: 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 60B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=SL5780133-109256<br><br>Reference 17: 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(27))<br> -URI https://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_EarningsPerShareBasic</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_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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>
<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 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI https://asc.fasb.org/extlink&amp;oid=128363288&amp;loc=d3e4984-109258<br><br>Reference 2: 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 7<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22644-107794<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 55<br> -Paragraph 15<br> -URI https://asc.fasb.org/extlink&amp;oid=128363288&amp;loc=d3e3842-109258<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 2<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1252-109256<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 11<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 6: 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 https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22595-107794<br><br>Reference 7: 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 3<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<br><br>Reference 8: 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 60B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=SL5780133-109256<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (f)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 10: 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(27))<br> -URI https://asc.fasb.org/extlink&amp;oid=120399700&amp;loc=SL114874048-224260<br><br>Reference 11: 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 https://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<br><br>Reference 12: 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(23))<br> -URI https://asc.fasb.org/extlink&amp;oid=120400993&amp;loc=SL114874131-224263<br><br>Reference 13: 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 11<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 14: 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 7<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1337-109256<br><br>Reference 15: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 40<br> -Section 65<br> -Paragraph 1<br> -Subparagraph (e)(4)<br> -URI https://asc.fasb.org/extlink&amp;oid=126732423&amp;loc=SL123482106-238011<br><br>Reference 16: 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(25))<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&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_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_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_IncomeAmountsAttributableToReportingEntityDisclosuresAbstract</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_IncomeLossFromContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from continuing operations 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 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 18<br> -URI https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4613673-111683<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 https://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 60B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=SL5780133-109256<br><br>Reference 4: 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 11<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<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 4<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22595-107794<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 210.5-03.13)<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&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 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<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 11<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22694-107794<br><br>Reference 9: 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 3<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22583-107794<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_IncomeLossFromContinuingOperations</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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from continuing operations including portion attributable to the 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 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<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 (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&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 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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</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 20<br> -Section 45<br> -Paragraph 3<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e957-107759<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721523-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721525-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=d3e1361-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 7: 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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569616-111683<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1012-107759<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</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_IncrementalCommonSharesAttributableToCallOptionsAndWarrants">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 call options and warrants 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 26<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1828-109256<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 23<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1757-109256<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 45<br> -Paragraph 22<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1707-109256<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 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI https://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_IncrementalCommonSharesAttributableToCallOptionsAndWarrants</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 718<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI https://asc.fasb.org/extlink&amp;oid=126962052&amp;loc=d3e4991-113900<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 22<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1707-109256<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 https://asc.fasb.org/extlink&amp;oid=124432515&amp;loc=d3e3550-109257<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 28A<br> -URI https://asc.fasb.org/extlink&amp;oid=126958026&amp;loc=d3e1500-109256<br><br>Reference 5: 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 https://asc.fasb.org/extlink&amp;oid=126958026&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_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_NetIncomeLossAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&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 (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109239629&amp;loc=SL4573702-111684<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 8<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22658-107794<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 (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=126968391&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 55<br> -Paragraph 4J<br> -URI https://asc.fasb.org/extlink&amp;oid=120409616&amp;loc=SL4591551-111686<br><br>Reference 6: 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 https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22663-107794<br><br>Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI https://asc.fasb.org/extlink&amp;oid=124431353&amp;loc=SL124452729-227067<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_NetIncomeLossAttributableToNoncontrollingInterest</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 https://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 https://asc.fasb.org/extlink&amp;oid=126958026&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 https://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 https://asc.fasb.org/extlink&amp;oid=126958026&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>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_WeightedAverageNumberOfSharesOutstandingBasicAbstract</td>
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<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>
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<body>
<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801652008">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Schedule of Long Term Debt (Details) (Parenthetical) - USD ($)<br></strong></div></th>
<th class="th"><div>May 08, 2020</div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Debt Issuance Costs, Net</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 120,000<span></span>
</td>
<td class="nump">$ 112,000<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_LongtermDebtTypeAxis=PESI_NotePayableOneMember', window );">Note Payable to 2023 [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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">5.60%<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_LongtermDebtTypeAxis=PESI_NotePayableTwoMember', window );">Note Payable 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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">9.10%<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_TypeOfArrangementAxis=PESI_RevolvingCreditMember', window );">Revolving Credit [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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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_us-gaap_DebtInstrumentMaturityDate', window );">Debt due date</a></td>
<td class="text">May 15,  2024<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_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.00%<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_TypeOfArrangementAxis=PESI_TermLoanMember', window );">Term Loan [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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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_us-gaap_DebtInstrumentMaturityDate', window );">Debt due date</a></td>
<td class="text">May 15,  2024<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_us-gaap_DebtInstrumentInterestRateEffectivePercentage', window );">Effective interest rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">4.30%<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_DebtInstrumentInterestRateEffectivePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.</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 20<br> -Section 50<br> -Paragraph 6<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6036836-161870<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 2<br> -URI https://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28551-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI https://asc.fasb.org/extlink&amp;oid=124429444&amp;loc=SL124452920-239629<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 210.5-02.22(a)(1))<br> -URI https://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_DebtInstrumentInterestRateEffectivePercentage</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_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_DebtInstrumentLineItems</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_DebtInstrumentMaturityDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.</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 210.5-02.22(a)(2))<br> -URI https://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 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 3: 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 https://asc.fasb.org/extlink&amp;oid=126976982&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_DebtInstrumentMaturityDate</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: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_us-gaap_DeferredFinanceCostsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</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 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1D<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495340-112611<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 https://asc.fasb.org/extlink&amp;oid=124435984&amp;loc=d3e28555-108399<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_DeferredFinanceCostsNet</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_LongtermDebtTypeAxis=PESI_NotePayableOneMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LongtermDebtTypeAxis=PESI_NotePayableOneMember</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_LongtermDebtTypeAxis=PESI_NotePayableTwoMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LongtermDebtTypeAxis=PESI_NotePayableTwoMember</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_TypeOfArrangementAxis=PESI_RevolvingCreditMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TypeOfArrangementAxis=PESI_RevolvingCreditMember</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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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TypeOfArrangementAxis=PESI_TermLoanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TypeOfArrangementAxis=PESI_TermLoanMember</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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516802695896">
<tr>
<th class="tl" colspan="2" rowspan="1"><div style="width: 200px;"><strong>Schedule of Long Term Debt (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
</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_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 875<span></span>
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<td class="nump">$ 993<span></span>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtCurrent', window );">Less current portion of long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">384<span></span>
</td>
<td class="nump">393<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_us-gaap_LongTermDebtNoncurrent', window );">Long-term debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">491<span></span>
</td>
<td class="nump">600<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_LongtermDebtTypeAxis=PESI_RevolvingCreditMember', window );">Revolving Credit [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>
</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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
</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_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_LongtermDebtTypeAxis=PESI_TermLoanMember', window );">Term Loan [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>
</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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
</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_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="nump">840<span></span>
</td>
<td class="nump">954<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_LongtermDebtTypeAxis=PESI_NotePayableMember', window );">Note Payable [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>
</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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
</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_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 35<span></span>
</td>
<td class="nump">$ 39<span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><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">Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Net of debt issuance
costs of ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1">120,000</span>) and ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4">112,000</span>) at March 31, 2022 and December 31, 2021, respectively.</td>
</tr>
</table></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>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>
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<tr>
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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_LongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.</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 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)(3)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6031897-161870<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69C<br> -URI https://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495737-112612<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)(16))<br> -URI https://asc.fasb.org/extlink&amp;oid=126734703&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69B<br> -URI https://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495735-112612<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 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI https://asc.fasb.org/extlink&amp;oid=126897435&amp;loc=d3e534808-122878<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1D<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495340-112611<br><br>Reference 7: 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 https://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_LongTermDebt</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>
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</tr>
<tr>
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<tr>
<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_LongTermDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 current. 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 210.5-02.19,20)<br> -URI https://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_LongTermDebtCurrent</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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<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, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.</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(22))<br> -URI https://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>
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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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<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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=PESI_RevolvingCreditMember</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_LongtermDebtTypeAxis=PESI_TermLoanMember">
<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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=PESI_TermLoanMember</td>
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<td><strong> Balance Type:</strong></td>
<td></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>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516797835544">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Long Term Debt (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 29, 2022</div></th>
<th class="th"><div>May 08, 2020</div></th>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 2021</div></th>
<th class="th"><div>May 04, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 875,000<span></span>
</td>
<td class="nump">$ 993,000<span></span>
</td>
<td class="text">&#160;<span></span>
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</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_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity', window );">Debt instrument, borrowing capacity, amount</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>
<td class="nump">$ 1,000,000<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_us-gaap_LineOfCreditFacilityBorrowingCapacityDescription', window );">Line of credit facility, borrowing capacity, description</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">requires
    maintenance of a minimum of $3,000,000 in borrowing availability under the revolving credit until the minimum FCCR requirement for
    the quarter ended June 30, 2022 has been met and certified to the lender; and<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage', window );">Percentage of unused line fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.375%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LettersOfCreditOutstandingAmount', window );">Letters of credit outstanding, amount</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3,020,000<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_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember', window );">London Interbank Offered Rate (LIBOR) [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Percentage of basis spread on variable rate</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="nump">0.75%<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_TitleOfIndividualAxis=PESI_LenderMember', window );">Lender [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentFeeAmount', window );">Debt Instrument, Fee Amount</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 15,000<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>
</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="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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage', window );">Percentage of unused line fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.375%<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="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="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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage', window );">Percentage of unused line fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">0.50%<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>
</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_LongtermDebtTypeAxis=PESI_TermLoanMember', window );">Term Loan [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1],[2]</sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 840,000<span></span>
</td>
<td class="nump">$ 954,000<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_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember', window );">Revised Loan Agreement [Member] | PNC Bank [Member] | Term Loan [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_LongTermDebt', window );">Total debt</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,742,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_us-gaap_DebtInstrumentPeriodicPayment', window );">Debt instrument periodic payment</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 35,547<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="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=PESI_CapitalExpenditureMember', window );">Capital Expenditure [Member] | Loan Agreement [Member] | Prime Rate [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Percentage of basis spread on variable rate</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="nump">2.50%<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_DebtInstrumentAxis=PESI_CapitalExpenditureMember', window );">Capital Expenditure [Member] | Loan Agreement [Member] | London Interbank Offered Rate (LIBOR) [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Percentage of basis spread on variable rate</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="nump">3.50%<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity', window );">Line of credit facility, remaining borrowing capacity</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="nump">$ 4,544,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LettersOfCreditOutstandingAmount', window );">Letters of credit outstanding, amount</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="nump">$ 3,020,000<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Loan Agreement [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Percentage of basis spread on variable rate</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="nump">2.00%<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Loan Agreement [Member] | Prime Rate [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Percentage of basis spread on variable rate</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="nump">3.50%<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Loan Agreement [Member] | London Interbank Offered Rate (LIBOR) [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Percentage of basis spread on variable rate</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="nump">3.00%<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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember', window );">Revolving Credit Facility [Member] | Revised Loan Agreement [Member] | PNC Bank [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>
<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_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></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>
<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_us-gaap_DebtInstrumentMaturityDate', window );">Debt instrument maturity date</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">Mar. 15,  2024<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_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity', window );">Line of credit facility, maximum borrowing capacity</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 18,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr><td colspan="6"></td></tr>
<tr><td colspan="6"><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">Net of debt issuance
costs of ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1">120,000</span>) and ($<span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4">112,000</span>) at March 31, 2022 and December 31, 2021, respectively.</td>
</tr>
<tr class="outerFootnote">
<td style="vertical-align: top; width: 12pt;" valign="top">[2]</td>
<td style="vertical-align: top;" valign="top">Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</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_DebtInstrumentBasisSpreadOnVariableRate1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 points added to the reference rate to compute the variable rate on the debt 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;">us-gaap_DebtInstrumentBasisSpreadOnVariableRate1</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>dtr-types:percentItemType</td>
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<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_DebtInstrumentFeeAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 fee that accompanies borrowing money under 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://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(b))<br> -URI https://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_DebtInstrumentFeeAmount</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_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_DebtInstrumentLineItems</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_DebtInstrumentMaturityDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.</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 210.5-02.22(a)(2))<br> -URI https://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 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1B<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495323-112611<br><br>Reference 3: 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 https://asc.fasb.org/extlink&amp;oid=126976982&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_DebtInstrumentMaturityDate</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: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_us-gaap_DebtInstrumentPeriodicPayment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 required periodic payments including both interest and principal payments.</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 https://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 942<br> -SubTopic 470<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=123599511&amp;loc=d3e64711-112823<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_DebtInstrumentPeriodicPayment</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_LettersOfCreditOutstandingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 total amount of the contingent obligation under letters of credit outstanding as of the reporting date.</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_LettersOfCreditOutstandingAmount</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_LineOfCreditFacilityBorrowingCapacityDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Description of the credit facility's borrowing capacity including discussion of how the borrowing capacity is determined (for example, borrowing capacity based on the amount of current 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/2009/role/commonPracticeRef<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)(b))<br> -URI https://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 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(19)(b))<br> -URI https://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_LineOfCreditFacilityBorrowingCapacityDescription</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_LineOfCreditFacilityCurrentBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.</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(b),22(b))<br> -URI https://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_LineOfCreditFacilityCurrentBorrowingCapacity</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_LineOfCreditFacilityMaximumBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.</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(b),22(b))<br> -URI https://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_LineOfCreditFacilityMaximumBorrowingCapacity</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_LineOfCreditFacilityRemainingBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings 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 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(b),22(b))<br> -URI https://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_LineOfCreditFacilityRemainingBorrowingCapacity</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_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.</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_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage</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_LongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.</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 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (b)(3)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466204&amp;loc=SL6031897-161870<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69C<br> -URI https://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495737-112612<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)(16))<br> -URI https://asc.fasb.org/extlink&amp;oid=126734703&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 55<br> -Paragraph 69B<br> -URI https://asc.fasb.org/extlink&amp;oid=123466577&amp;loc=SL123495735-112612<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 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI https://asc.fasb.org/extlink&amp;oid=126897435&amp;loc=d3e534808-122878<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1D<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=123466505&amp;loc=SL123495340-112611<br><br>Reference 7: 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 https://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_LongTermDebt</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_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember</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_TitleOfIndividualAxis=PESI_LenderMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TitleOfIndividualAxis=PESI_LenderMember</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>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=PESI_TermLoanMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LongtermDebtTypeAxis=PESI_TermLoanMember</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_DebtInstrumentAxis=PESI_RevisedLoanAgreementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_RevisedLoanAgreementMember</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_dei_LegalEntityAxis=PESI_PNCBankMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">dei_LegalEntityAxis=PESI_PNCBankMember</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_DebtInstrumentAxis=PESI_CapitalExpenditureMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_CapitalExpenditureMember</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_TypeOfArrangementAxis=PESI_LoanAgreementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TypeOfArrangementAxis=PESI_LoanAgreementMember</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_VariableRateAxis=us-gaap_PrimeRateMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_VariableRateAxis=us-gaap_PrimeRateMember</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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember</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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<head>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516797772264">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies (Details Narrative)<br></strong></div></th>
<th class="th" colspan="1">1 Months Ended</th>
<th class="th" colspan="3">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2003</div></th>
<th class="th">
<div>Mar. 31, 2022 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Mar. 31, 2022 </div>
<div>CAD ($)</div>
</th>
<th class="th">
<div>Mar. 31, 2021 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2021 </div>
<div>USD ($)</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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems', window );"><strong>Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</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>
<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_us-gaap_AccountsReceivableNetCurrent', window );">Accounts Receivable, after Allowance for Credit Loss, Current</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 10,322,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 11,372,000<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_us-gaap_RestrictedCashNoncurrent', window );">Restricted Cash, Noncurrent</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">11,482,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">11,471,000<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_us-gaap_InterestIncomeOther', window );">Interest Income, Other</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">11,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 18,000<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_us-gaap_LettersOfCreditOutstandingAmount', window );">Letters of Credit Outstanding, Amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,020,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_PESI_BondOutstanding', window );">Bond outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">51,295,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember', window );">American International Group, Inc [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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems', window );"><strong>Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</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>
<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_PESI_PeriodOfFiniteRiskInsurancePolicy', window );">Period of finite risk insurance policy</a></td>
<td class="text">25 years<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_PESI_MaximumAllowableCoverageOfInsurancePolicy', window );">Maximum allowable coverage of insurance policy</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">28,177,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_PESI_CoverageAmountUnderPolicy', window );">Coverage amount under the policy</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">21,047,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_us-gaap_InterestIncomeOther', window );">Interest Income, Other</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 11,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 18,000<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_PESI_InsurersObligationToEntityOnTerminationOfContract', window );">Insurers obligation to entity on termination of contract</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">100.00%<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="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember', window );">American International Group, Inc [Member] | 2003 Closure Policy [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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems', window );"><strong>Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</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>
<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_us-gaap_RestrictedCashNoncurrent', window );">Restricted Cash, Noncurrent</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 11,482,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">11,471,000<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_us-gaap_InterestIncomeOther', window );">Interest Income, Other</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,011,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,000,000<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_RelatedPartyTransactionsByRelatedPartyAxis=PESI_CanadianNuclearLaboratoriesLTDMember', window );">Canadian Nuclear Laboratories LTD [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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems', window );"><strong>Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]</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>
<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_PESI_UnpaidReceivablesAndUnbilledCosts', window );">Unpaid receivables and unbilled costs</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,722,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_us-gaap_AccountsReceivableNetCurrent', window );">Accounts Receivable, after Allowance for Credit Loss, Current</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,150,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</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_PESI_BondSecuringAmount', window );">Bond securing amount</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,900,000<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_PESI_BondOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 total amount of the bonds outstanding as of the reporting date.</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;">PESI_BondOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_BondSecuringAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Bond securing amount.</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;">PESI_BondSecuringAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_CoverageAmountUnderPolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Coverage amount under the policy.</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;">PESI_CoverageAmountUnderPolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_InsurersObligationToEntityOnTerminationOfContract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Insurer's obligation to entity on termination of contract in terms of percentage of sinking fund.</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;">PESI_InsurersObligationToEntityOnTerminationOfContract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_MaximumAllowableCoverageOfInsurancePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Maximum allowable coverage of insurance policy against annual inflation and other performance and surety bond requirements.</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;">PESI_MaximumAllowableCoverageOfInsurancePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_PeriodOfFiniteRiskInsurancePolicy">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 period of finite risk insurance policy.</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;">PESI_PeriodOfFiniteRiskInsurancePolicy</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_PESI_UnpaidReceivablesAndUnbilledCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Unpaid receivables and unbilled costs.</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;">PESI_UnpaidReceivablesAndUnbilledCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_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 https://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 https://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_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems</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_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 interest income earned from interest bearing assets classified as 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;">us-gaap_InterestIncomeOther</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_LettersOfCreditOutstandingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 total amount of the contingent obligation under letters of credit outstanding as of the reporting date.</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_LettersOfCreditOutstandingAmount</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_RestrictedCashNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 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.</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 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(17))<br> -URI https://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 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI https://asc.fasb.org/extlink&amp;oid=126999549&amp;loc=SL98516268-108586<br><br>Reference 3: 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 https://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_RestrictedCashNoncurrent</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_srt_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_CounterpartyNameAxis=PESI_AmericanInternationalGroupIncMember</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_TypeOfArrangementAxis=PESI_ThousandandThreeClosurePolicyMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TypeOfArrangementAxis=PESI_ThousandandThreeClosurePolicyMember</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_RelatedPartyTransactionsByRelatedPartyAxis=PESI_CanadianNuclearLaboratoriesLTDMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_RelatedPartyTransactionsByRelatedPartyAxis=PESI_CanadianNuclearLaboratoriesLTDMember</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>
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<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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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801295800">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract', window );"><strong>Current assets</strong></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>
</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_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets', window );">Other assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 27<span></span>
</td>
<td class="nump">$ 15<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent', window );">Total current assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">27<span></span>
</td>
<td class="nump">15<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_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract', window );"><strong>Long-term assets</strong></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>
</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_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent', window );">Property, plant and equipment, net</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">81<span></span>
</td>
<td class="nump">81<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent', window );">Total long-term assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">81<span></span>
</td>
<td class="nump">81<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation', window );">Total assets</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">108<span></span>
</td>
<td class="nump">96<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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract', window );"><strong>Current liabilities</strong></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>
</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_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">34<span></span>
</td>
<td class="nump">3<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_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent', window );">Accrued expenses and other liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">147<span></span>
</td>
<td class="nump">154<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_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities', window );">Environmental liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">621<span></span>
</td>
<td class="nump">349<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent', window );">Total current liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">802<span></span>
</td>
<td class="nump">506<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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract', window );"><strong>Long-term liabilities</strong></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>
</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_PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities', window );">Closure liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">153<span></span>
</td>
<td class="nump">150<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_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities', window );">Environmental liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">255<span></span>
</td>
<td class="nump">527<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent', window );">Total long-term liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">408<span></span>
</td>
<td class="nump">677<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_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation', window );">Total liabilities</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,210<span></span>
</td>
<td class="nump">1,183<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_us-gaap_DepreciationAndAmortizationDiscontinuedOperations', window );">Depreciation</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 10,000<span></span>
</td>
<td class="nump">$ 10,000<span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><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">net of accumulated
depreciation of $<span id="xdx_901_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20220101__20220331_ztFgjoKcIlPd" title="Depreciation"><span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIERpc3Bvc2FsIEdyb3VwcywgSW5jbHVkaW5nIERpc2NvbnRpbnVlZCBPcGVyYXRpb24gQmFsYW5jZSBTaGVldCAoRGV0YWlscykgKFBhcmVudGhldGljYWwpAA__" id="xdx_904_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20210101__20211231_zRS5vyoy0Jlh">10,000</span></span> for each period presented.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Closure 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;">PESI_DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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_AssetsOfDisposalGroupIncludingDiscontinuedOperation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as assets attributable to disposal group held for sale or disposed of.</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 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<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_AssetsOfDisposalGroupIncludingDiscontinuedOperation</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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of 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 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 7: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent</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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract</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_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract</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_DepreciationAndAmortizationDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued 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/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 https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (c)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<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_DepreciationAndAmortizationDiscontinuedOperations</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_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as accounts payable attributable to disposal group held for sale or disposed of, expected to be disposed of 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 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<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_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent</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_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as accrued liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of 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 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<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_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent</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_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of 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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2510-110228<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<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_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent</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_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of 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 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<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_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets</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_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.</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>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Period Type:</strong></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>Amount classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond 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 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2510-110228<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<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_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities</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>
<td>xbrli:monetaryItemType</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 classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of 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 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2510-110228<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<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_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent</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>
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</div></td></tr>
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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 classified as liabilities attributable to disposal group held for sale or disposed of.</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 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 4: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation</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>
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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>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of 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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2473-110228<br><br>Reference 6: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent</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>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>instant</td>
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</table></div>
</div></td></tr>
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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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract</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>
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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>Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond 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://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 7<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721683-107760<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 10<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1107-107759<br><br>Reference 3: 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 3<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (a)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (e)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=126905981&amp;loc=d3e2510-110228<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 11<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721533-107759<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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent</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>
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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_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516805526200">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) (Parenthetical) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 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_DiscontinuedOperationsAndDisposalGroupsAbstract', window );"><strong>Discontinued Operations and Disposal Groups [Abstract]</strong></a></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_us-gaap_DepreciationAndAmortizationDiscontinuedOperations', window );">Depreciation and Amortization, Discontinued Operations</a></td>
<td class="nump">$ 10,000<span></span>
</td>
<td class="nump">$ 10,000<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_DepreciationAndAmortizationDiscontinuedOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued 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/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 https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (c)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<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_DepreciationAndAmortizationDiscontinuedOperations</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_DiscontinuedOperationsAndDisposalGroupsAbstract">
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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_DiscontinuedOperationsAndDisposalGroupsAbstract</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>
<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>
</div>
</body>
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<DOCUMENT>
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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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516805453992">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Discontinued Operations (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract', window );"><strong>Discontinued Operations and Disposal Groups [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity', window );">Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent</a></td>
<td class="nump">$ 94,000<span></span>
</td>
<td class="nump">$ 115,000<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_us-gaap_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal', window );">Net of tax benefit</a></td>
<td class="nump">$ 63,000<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_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 (expense) benefit on (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a 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 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=123586238&amp;loc=d3e38679-109324<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=d3e1361-107760<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721525-107759<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_DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal</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_DiscontinuedOperationsAndDisposalGroupsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_DiscontinuedOperationsAndDisposalGroupsAbstract</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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.</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 20<br> -Section 45<br> -Paragraph 3<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e957-107759<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3A<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721523-107759<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 3B<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=SL51721525-107759<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=d3e1361-107760<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5C<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721675-107760<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 5B<br> -Subparagraph (a)<br> -URI https://asc.fasb.org/extlink&amp;oid=109222650&amp;loc=SL51721673-107760<br><br>Reference 7: 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 https://asc.fasb.org/extlink&amp;oid=126929396&amp;loc=SL4569616-111683<br><br>Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 45<br> -Paragraph 4<br> -URI https://asc.fasb.org/extlink&amp;oid=109222160&amp;loc=d3e1012-107759<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_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity</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>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>64
<FILENAME>R54.htm
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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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<body>
<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516797837608">
<tr>
<th class="tl" colspan="2" rowspan="2"><div style="width: 200px;"><strong>Schedule of Segment Reporting Information (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></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>
</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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">$ 15,915<span></span>
</td>
<td class="nump">$ 23,133<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_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,636<span></span>
</td>
<td class="nump">2,356<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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">96<span></span>
</td>
<td class="nump">150<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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">11<span></span>
</td>
<td class="nump">18<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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(35)<span></span>
</td>
<td class="num">(67)<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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(13)<span></span>
</td>
<td class="num">(8)<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_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">456<span></span>
</td>
<td class="nump">400<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_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,922)<span></span>
</td>
<td class="num">(1,055)<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(673)<span></span>
</td>
<td class="num">(17)<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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,249)<span></span>
</td>
<td class="num">(1,038)<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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Expenditures for segment assets (net)</a></td>
<td class="th" style="border-bottom: 0px;"><sup>[1]</sup></td>
<td class="nump">345<span></span>
</td>
<td class="nump">361<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_PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure', window );">Financed portion amount in the purchase of capital expenditure</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">114,000<span></span>
</td>
<td class="nump">29,000<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=PESI_TreatmentMember', window );">Treatment [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>
</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></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>
</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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">7,479<span></span>
</td>
<td class="nump">7,495<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_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">111<span></span>
</td>
<td class="nump">660<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_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">638<span></span>
</td>
<td class="nump">925<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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">65<span></span>
</td>
<td class="nump">47<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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(14)<span></span>
</td>
<td class="num">(19)<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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">371<span></span>
</td>
<td class="nump">310<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_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(481)<span></span>
</td>
<td class="num">(119)<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(559)<span></span>
</td>
<td class="num">(17)<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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">78<span></span>
</td>
<td class="num">(102)<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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Expenditures for segment assets (net)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">296<span></span>
</td>
<td class="nump">357<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=PESI_ServicesMember', window );">Services [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>
</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></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>
</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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">8,436<span></span>
</td>
<td class="nump">15,638<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_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">183<span></span>
</td>
<td class="nump">7<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_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">998<span></span>
</td>
<td class="nump">1,431<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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">14<span></span>
</td>
<td class="nump">13<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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1)<span></span>
</td>
<td class="num">(8)<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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">71<span></span>
</td>
<td class="nump">85<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_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">285<span></span>
</td>
<td class="nump">555<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(114)<span></span>
</td>
<td class="text"> <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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">399<span></span>
</td>
<td class="nump">555<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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Expenditures for segment assets (net)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">49<span></span>
</td>
<td class="nump">4<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=PESI_SegmentsTotalMember', window );">Segments Total [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>
</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></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>
</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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">15,915<span></span>
</td>
<td class="nump">23,133<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_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">294<span></span>
</td>
<td class="nump">667<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_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">1,636<span></span>
</td>
<td class="nump">2,356<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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">79<span></span>
</td>
<td class="nump">136<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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(15)<span></span>
</td>
<td class="num">(27)<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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">442<span></span>
</td>
<td class="nump">395<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_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(196)<span></span>
</td>
<td class="nump">360<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(673)<span></span>
</td>
<td class="num">(17)<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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">477<span></span>
</td>
<td class="nump">377<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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Expenditures for segment assets (net)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">345<span></span>
</td>
<td class="nump">361<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_CorporateAndOtherMember', window );">Corporate and Other [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>
</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></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>
</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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">17<span></span>
</td>
<td class="nump">14<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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">11<span></span>
</td>
<td class="nump">18<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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(20)<span></span>
</td>
<td class="num">(40)<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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(13)<span></span>
</td>
<td class="num">(8)<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_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="nump">14<span></span>
</td>
<td class="nump">5<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_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,726)<span></span>
</td>
<td class="num">(1,415)<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="num">(1,726)<span></span>
</td>
<td class="num">(1,415)<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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Expenditures for segment assets (net)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text"> <span></span>
</td>
<td class="text"> <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=PESI_MedicalMember', window );">Medical [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>
</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></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>
</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_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from external customers</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_PESI_IntercompanyRevenues', window );">Intercompany revenues</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_ResearchAndDevelopmentExpense', window );">Research and development</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">76<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_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_InterestExpense', window );">Interest expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_FinancingInterestExpense', window );">Interest expense-financing fees</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_DepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Segment income (loss) before income taxes</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(76)<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_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax (benefit) expense</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <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_us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest', window );">Segment income (loss)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(76)<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_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Expenditures for segment assets (net)</a></td>
<td class="th" style="border-bottom: 0px;"><sup></sup></td>
<td class="text">&#160;<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr><td colspan="3"></td></tr>
<tr><td colspan="3"><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">Net of financed
amount of $<span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure">114,000</span> and $<span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg">29,000</span> for the three months ended March 31, 2022 and 2021, respectively.</td>
</tr></table></td></tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>Financed Portion Amount In Purchase Of  Capital Expenditure.</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;">PESI_FinancedPortionAmountInPurchaseOfCapitalExpenditure</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>PESI_</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>
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</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_IntercompanyRevenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 intercompany revenue reported for the transaction within the fellow concerns of the 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;">PESI_IntercompanyRevenues</td>
</tr>
<tr>
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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>
</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_DepreciationAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.</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 https://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 https://asc.fasb.org/extlink&amp;oid=126954810&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_DepreciationAndAmortization</td>
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<tr>
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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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</table></div>
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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>This element represents interest incurred for borrowed money which was used to produce goods or render 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 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI https://asc.fasb.org/extlink&amp;oid=126953954&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_FinancingInterestExpense</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>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
<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_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>
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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_GrossProfit</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_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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126941158&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126953954&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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 income (loss) from continuing operations including portion attributable to the 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 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=114001798&amp;loc=d3e33918-111571<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 (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&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 470<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(A))<br> -URI https://asc.fasb.org/extlink&amp;oid=126975872&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 32<br> -Subparagraph (f)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&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 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(g)(1)(ii))<br> -URI https://asc.fasb.org/extlink&amp;oid=120395691&amp;loc=d3e23780-122690<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 22<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8736-108599<br><br>Reference 7: 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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 https://asc.fasb.org/extlink&amp;oid=126975872&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 https://asc.fasb.org/extlink&amp;oid=126975872&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 1B<br> -Subparagraph (SX 210.13-02(a)(4)(iii)(B))<br> -URI https://asc.fasb.org/extlink&amp;oid=126975872&amp;loc=SL124442552-122756<br><br>Reference 13: 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30<br> -Subparagraph (b)<br> -URI https://asc.fasb.org/extlink&amp;oid=126901519&amp;loc=d3e8906-108599<br><br>Reference 20: 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 1<br> -Subparagraph (b)(2)<br> -URI https://asc.fasb.org/extlink&amp;oid=124431687&amp;loc=d3e22499-107794<br><br>Reference 21: 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 https://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_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest</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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://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 https://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 https://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 https://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 https://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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126953954&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 https://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_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 interest income earned from interest bearing assets classified as 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;">us-gaap_InterestIncomeOther</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_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</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 13<br> -Subparagraph (c)<br> -URI https://asc.fasb.org/extlink&amp;oid=126954810&amp;loc=d3e3213-108585<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_PaymentsToAcquirePropertyPlantAndEquipment</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 https://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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126920106&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://asc.fasb.org/extlink&amp;oid=126920106&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 https://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_SegmentReportingInformationLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">us-gaap_SegmentReportingInformationLineItems</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_StatementBusinessSegmentsAxis=PESI_TreatmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_TreatmentMember</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=PESI_ServicesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_ServicesMember</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=PESI_SegmentsTotalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_SegmentsTotalMember</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=us-gaap_CorporateAndOtherMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=us-gaap_CorporateAndOtherMember</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=PESI_MedicalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=PESI_MedicalMember</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;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516804482504">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Operating Segments (Details Narrative)<br></strong></div></th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr><th class="th"><div>Dec. 31, 2021</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_ConsolidatedEntitiesAxis=PESI_PFMPolandMember', window );">PFM Poland [Member]</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_PESI_SalesOfInterestPercentage', window );">Sales of interest percentage</a></td>
<td class="nump">100.00%<span></span>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_PESI_SalesOfInterestPercentage">
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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>Sales of interest percentage.</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;">PESI_SalesOfInterestPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
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<tr>
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<td>na</td>
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<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_ConsolidatedEntitiesAxis=PESI_PFMPolandMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ConsolidatedEntitiesAxis=PESI_PFMPolandMember</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>
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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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<body>
<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801066088">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Income Taxes (Details Narrative) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Mar. 31, 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_IncomeTaxDisclosureAbstract', window );"><strong>Income Tax Disclosure [Abstract]</strong></a></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_us-gaap_IncomeTaxExpenseBenefit', window );">Income Tax Expense (Benefit)</a></td>
<td class="nump">$ 673<span></span>
</td>
<td class="nump">$ 17<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_us-gaap_EffectiveIncomeTaxRateContinuingOperations', window );">Effective Income Tax Rate Reconciliation, Percent</a></td>
<td class="nump">35.00%<span></span>
</td>
<td class="nump">1.60%<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">
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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>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 https://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>
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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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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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 https://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 https://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 https://asc.fasb.org/extlink&amp;oid=126901519&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 https://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 https://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 https://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 https://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 https://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>
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516802722520">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Variable Interest Entities (&#8220;VIE&#8221;) (Details Narrative) - USD ($)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2022</div></th>
<th class="th"><div>Dec. 31, 2021</div></th>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableInterestEntityOwnershipPercentage', window );">Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage</a></td>
<td class="nump">51.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Assets</a></td>
<td class="nump">$ 72,176,000<span></span>
</td>
<td class="nump">$ 77,301,000<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_us-gaap_Liabilities', window );">Liabilities</a></td>
<td class="nump">$ 32,684,000<span></span>
</td>
<td class="nump">$ 36,717,000<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_dei_LegalEntityAxis=PESI_EngineeringRemediationResourcesGroupIncMember', window );">Engineering/Remediation Resources Group, Inc [Member]</a></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_us-gaap_VariableInterestEntityOwnershipPercentage', window );">Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage</a></td>
<td class="nump">49.00%<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_dei_LegalEntityAxis=PESI_PermaFixERRGMember', window );">Perma-Fix ERRG [Member]</a></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_us-gaap_Assets', window );">Assets</a></td>
<td class="nump">$ 122,000<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_us-gaap_Liabilities', window );">Liabilities</a></td>
<td class="nump">$ 122,000<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_Assets">
<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 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>
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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>
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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>
</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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<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>
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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>
<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 https://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 https://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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<a href="javascript:void(0);" 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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).</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 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5A<br> -Subparagraph (d)<br> -URI https://asc.fasb.org/extlink&amp;oid=123419778&amp;loc=SL6759159-111685<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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.22.1</span><table class="report" border="0" cellspacing="2" id="idm140516801196936">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Executive Compensation (Details Narrative)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Jan. 20, 2022 </div>
<div>USD ($)</div>
</th>
<th class="th"><div>Mar. 31, 2022</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_TitleOfIndividualAxis=srt_ExecutiveOfficerMember', window );">Executive Officer [Member]</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_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems', window );"><strong>Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</strong></a></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_PESI_PercentageIncreaseInAnnualCompensation', window );">Percentage increase in annual compensation</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0.064<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_TitleOfIndividualAxis=PESI_CEOMember', window );">CEO [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_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems', window );"><strong>Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</strong></a></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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage', window );">Compensation arrangement with individual, cash awards, minimum, percentage</a></td>
<td class="nump">25.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage', window );">Compensation arrangement with individual, cash awards, maximum, percentage</a></td>
<td class="nump">150.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount', window );">Compensation arrangement with individual, cash awards, minimum, amount</a></td>
<td class="nump">$ 93,717<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount', window );">Compensation arrangement with individual, cash awards, maximum, amount</a></td>
<td class="nump">$ 562,304<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_TitleOfIndividualAxis=srt_ChiefFinancialOfficerMember', window );">Chief Financial Officer [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_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems', window );"><strong>Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</strong></a></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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage', window );">Compensation arrangement with individual, cash awards, minimum, percentage</a></td>
<td class="nump">25.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage', window );">Compensation arrangement with individual, cash awards, maximum, percentage</a></td>
<td class="nump">100.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount', window );">Compensation arrangement with individual, cash awards, minimum, amount</a></td>
<td class="nump">$ 76,193<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount', window );">Compensation arrangement with individual, cash awards, maximum, amount</a></td>
<td class="nump">$ 304,772<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_TitleOfIndividualAxis=PESI_ExecutiveVicePresidentOfStrategicInitiativesMember', window );">EVP of Strategic Initiatives [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_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems', window );"><strong>Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</strong></a></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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage', window );">Compensation arrangement with individual, cash awards, minimum, percentage</a></td>
<td class="nump">25.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage', window );">Compensation arrangement with individual, cash awards, maximum, percentage</a></td>
<td class="nump">100.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount', window );">Compensation arrangement with individual, cash awards, minimum, amount</a></td>
<td class="nump">$ 63,495<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount', window );">Compensation arrangement with individual, cash awards, maximum, amount</a></td>
<td class="nump">$ 253,980<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_TitleOfIndividualAxis=PESI_ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember', window );">EVP of Nuclear And Technical Services [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_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems', window );"><strong>Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</strong></a></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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage', window );">Compensation arrangement with individual, cash awards, minimum, percentage</a></td>
<td class="nump">25.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage', window );">Compensation arrangement with individual, cash awards, maximum, percentage</a></td>
<td class="nump">100.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount', window );">Compensation arrangement with individual, cash awards, minimum, amount</a></td>
<td class="nump">$ 76,193<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount', window );">Compensation arrangement with individual, cash awards, maximum, amount</a></td>
<td class="nump">$ 304,772<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_TitleOfIndividualAxis=PESI_ExecutiveVicePresidentOfWasteTreatmentOperationsMember', window );">EVP of Waste Treatment Operations [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_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsLineItems', window );"><strong>Deferred Compensation Arrangement with Individual, Excluding Share-Based Payments and Postretirement Benefits [Line Items]</strong></a></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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumPercentage', window );">Compensation arrangement with individual, cash awards, minimum, percentage</a></td>
<td class="nump">25.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumPercentage', window );">Compensation arrangement with individual, cash awards, maximum, percentage</a></td>
<td class="nump">100.00%<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_PESI_CompensationArrangementWithIndividualCashAwardsMinimumAmount', window );">Compensation arrangement with individual, cash awards, minimum, amount</a></td>
<td class="nump">$ 65,308<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_PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount', window );">Compensation arrangement with individual, cash awards, maximum, amount</a></td>
<td class="nump">$ 261,233<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Maximum cash incentive payable under Management Incentive Plan.</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>
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<td style="white-space:nowrap;">PESI_CompensationArrangementWithIndividualCashAwardsMaximumAmount</td>
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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>
<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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<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>Compensation arrangement with individual, cash awards, minimum, percentage.</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">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage increase in annual compensation.</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">
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<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">
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      decimals="-3"
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    <us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_808_eus-gaap--BusinessDescriptionAndBasisOfPresentationTextBlock_zEBf17lk8lpe" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;1.
    &lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_820_zt3VR8oqMUg2"&gt;Basis
    of Presentation&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
consolidated financial statements included herein have been prepared by the Company (which may be referred to as we, us or our), without
an audit, pursuant to the rules and regulations of the Securities and Exchange Commission (&#x201c;the Commission&#x201d;). Certain information
and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in
the United States of America (&#x201c;U.S. GAAP&#x201d;) have been condensed or omitted pursuant to such rules and regulations, although
the Company believes the disclosures which are made are adequate to make the information presented not misleading. Further, the consolidated
financial statements reflect, in the opinion of management, all adjustments (which include only normal recurring adjustments) necessary
to present fairly the financial position and results of operations as of and for the periods indicated. The results of operations for
the three months ended March 31, 2022 are not necessarily indicative of results to be expected for the fiscal year ending December 31,
2022.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company suggests that these consolidated financial statements be read in conjunction with the consolidated financial statements and the
notes thereto included in the Company&#x2019;s Annual Report on Form 10-K for the year ended December 31, 2021.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
consolidated financial statements include the accounts of our wholly-owned subsidiaries and the account of a variable interest entity
(&#x201c;VIE&#x201d;), Perma-Fix ERRG for which we are the primary beneficiary (See &#x201c;Note 13 - VIE&#x201d; for a discussion of this
VIE). The consolidated financial statements for 2021 also included the accounts of the Company&#x2019;s majority-owned Polish subsidiary,
Perma-Fix Medical S.A (&#x201c;PFM Poland&#x201d;) and PFM Poland&#x2019;s wholly-owned subsidiary, Perma-Fix Medical Corporation (&#x201c;PFMC&#x201d;),
which comprised of the Company&#x2019;s Medical Segment. As previously discussed, the Company made the strategic decision to cease all
research and development (&#x201c;R&amp;amp;D&#x201d;) activities under the Medical Segment and sold &lt;span id="xdx_907_ecustom--SalesOfInterestPercentage_pid_dp_uPure_c20210101__20211231__srt--ConsolidatedEntitiesAxis__custom--PFMPolandMember_zslS59CNMYz1" title="Sale of interest in subsidiaries"&gt;100&lt;/span&gt;% of its interest in PFM Poland in
December 2021. As a condition precent to the sale of PFM Poland, the Company acquired PFMC after its conversion to a Delaware limited
liability company. As a result of the sale of PFM Poland, the Company deconsolidated PFM Poland from its consolidated financial statements
in December 2021. The Company&#x2019;s Medical Segment had not generated any revenue.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Information
for the Medical Segment is presented for the quarter ending March 31, 2021. The Medical Segment was disposed of as of December 31, 2021
and is not relevant for the quarter ending March 31, 2022. Prior period segment information is not required to be restated for the disposal
of the segment.&lt;/span&gt;&lt;/p&gt;

</us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock>
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    <us-gaap:SignificantAccountingPoliciesTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_805_eus-gaap--SignificantAccountingPoliciesTextBlock_zK218IEAgkWi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;2.
    &lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_82B_z0SiOHBpkG1f"&gt;Summary
    of Significant Accounting Policies&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Our
accounting policies are as set forth in the notes to the December 31, 2021 consolidated financial statements referred to above.&lt;/span&gt;&lt;/p&gt;

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




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

&lt;p id="xdx_84E_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zlFMS3erTZeb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span id="xdx_864_zYjYieBmuiB4"&gt;Recently
Adopted Accounting Standards&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
May 2021, the Financial Accounting Standards Board (&#x201c;FASB&#x201d;) issued Accounting Standards Update (&#x201c;ASU&#x201d;) No. 2021-04,
&#x201c;Earnings Per Share (Topic 206), Debt-Modifications and Extinguishments (Subtopic 470-50), Compensation-Stock Compensation (Topic
718), and Derivatives and Hedging-Contracts in Entity&#x2019;s Own Equity (Subtopic 815-40): Issuer&#x2019;s Accounting for Certain Modifications
or Exchanges of Freestanding Equity-Classified Written Call Options (a consensus of the FASB Emerging Issues Task Force).&#x201d; ASU
2021-04 addresses issuer&#x2019;s accounting for certain modifications or exchanges of freestanding equity-classified written call options.
This ASU is effective for all entities, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal
years. Early adoption is permitted. The adoption of this ASU by the Company effective January 1, 2022 did not have a material impact
on its financial statements.&lt;/span&gt;&lt;/p&gt;

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

&lt;p id="xdx_843_ecustom--NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_z1olpfQeEYU8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span id="xdx_867_zag1M9rPevX6"&gt;Recently
Issued Accounting Standards &#x2013; Not Yet Adopted&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
June 2016, the FASB issued ASU No. 2016-13, &#x201c;Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments,&#x201d;
and various subsequent amendments to the initial guidance (collectively, &#x201c;Topic 326&#x201d;). Topic 326 introduces an approach,
based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale
debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most
financial assets measured at amortized cost and certain other instruments, including trade and other receivables and loans. Entities
are required to apply the standard&#x2019;s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the
first reporting period in which the guidance is adopted. In November 2019, FASB issued ASU 2019-10, &#x201c;Financial Instruments &#x2013;
Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842),&#x201d; which defers the effective date of ASU
2016-13 for public companies that are considered smaller reporting companies (&#x201c;SRC&#x201d;) as defined by the Commission to fiscal
years beginning after December 15, 2022, including interim periods within those fiscal years. These ASUs are effective January 1, 2023
for the Company as an SRC. Under new guidance issued by the Commission in March 2020, the Company continues to qualify as a smaller reporting
company but became an accelerated filer starting with its 2021 Form 10-K and all subsequent filings. The Company is currently evaluating
the impact of these ASU on its consolidated financial statements.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
March 2020, the FASB issued ASU 2020-04, &#x201c;Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform
on Financial Reporting,&#x201d; which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships
and other transactions affected by the discontinuation of the London Interbank Offered Rate (&#x201c;LIBOR&#x201d;) or by another reference
rate expected to be discontinued because of reference rate reform. The guidance was effective beginning March 12, 2020 and can be applied
prospectively through December 31, 2022. In January 2021, the FASB issued ASU No. 2021-01, &#x201c;Reference Rate Reform (Topic 848):
Scope,&#x201d; which clarified the scope and application of the original guidance. The Company plans to adopt both ASUs when LIBOR is
discontinued. The Company is currently evaluating the impact of the new ASUs on its condensed consolidated financial statements. As of
the date of this report, the Company has determined that only its obligations under the credit facility as described in &#x201c;Note 8
&#x2013; Long Term Debt would be impacted by these ASUs. The Company&#x2019;s obligations under
its credit facility permit for payment of annual rate of interests on its obligations using prime rate or LIBOR.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
August 2020, the FASB issued ASU No. 2020-06, &#x201c;Debt &#x2013; Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives
and Hedging &#x2013; Contracts in Entity&#x2019;s Own Equity.&#x201d; ASU 2020-06 simplifies the accounting for convertible instruments
by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts
in an entity&#x2019;s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06
is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as an
SRC. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within
those fiscal years. The Company is currently evaluating the impact of this ASU on its consolidated financial statements and disclosures.&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_85C_zfKQeOClV4s2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;




</us-gaap:SignificantAccountingPoliciesTextBlock>
    <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_84E_eus-gaap--NewAccountingPronouncementsPolicyPolicyTextBlock_zlFMS3erTZeb" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span id="xdx_864_zYjYieBmuiB4"&gt;Recently
Adopted Accounting Standards&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
May 2021, the Financial Accounting Standards Board (&#x201c;FASB&#x201d;) issued Accounting Standards Update (&#x201c;ASU&#x201d;) No. 2021-04,
&#x201c;Earnings Per Share (Topic 206), Debt-Modifications and Extinguishments (Subtopic 470-50), Compensation-Stock Compensation (Topic
718), and Derivatives and Hedging-Contracts in Entity&#x2019;s Own Equity (Subtopic 815-40): Issuer&#x2019;s Accounting for Certain Modifications
or Exchanges of Freestanding Equity-Classified Written Call Options (a consensus of the FASB Emerging Issues Task Force).&#x201d; ASU
2021-04 addresses issuer&#x2019;s accounting for certain modifications or exchanges of freestanding equity-classified written call options.
This ASU is effective for all entities, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal
years. Early adoption is permitted. The adoption of this ASU by the Company effective January 1, 2022 did not have a material impact
on its financial statements.&lt;/span&gt;&lt;/p&gt;

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

</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
    <PESI:NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_843_ecustom--NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock_z1olpfQeEYU8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span id="xdx_867_zag1M9rPevX6"&gt;Recently
Issued Accounting Standards &#x2013; Not Yet Adopted&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
June 2016, the FASB issued ASU No. 2016-13, &#x201c;Credit Losses (Topic 326) - Measurement of Credit Losses on Financial Instruments,&#x201d;
and various subsequent amendments to the initial guidance (collectively, &#x201c;Topic 326&#x201d;). Topic 326 introduces an approach,
based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale
debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most
financial assets measured at amortized cost and certain other instruments, including trade and other receivables and loans. Entities
are required to apply the standard&#x2019;s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the
first reporting period in which the guidance is adopted. In November 2019, FASB issued ASU 2019-10, &#x201c;Financial Instruments &#x2013;
Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842),&#x201d; which defers the effective date of ASU
2016-13 for public companies that are considered smaller reporting companies (&#x201c;SRC&#x201d;) as defined by the Commission to fiscal
years beginning after December 15, 2022, including interim periods within those fiscal years. These ASUs are effective January 1, 2023
for the Company as an SRC. Under new guidance issued by the Commission in March 2020, the Company continues to qualify as a smaller reporting
company but became an accelerated filer starting with its 2021 Form 10-K and all subsequent filings. The Company is currently evaluating
the impact of these ASU on its consolidated financial statements.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
March 2020, the FASB issued ASU 2020-04, &#x201c;Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform
on Financial Reporting,&#x201d; which provides optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships
and other transactions affected by the discontinuation of the London Interbank Offered Rate (&#x201c;LIBOR&#x201d;) or by another reference
rate expected to be discontinued because of reference rate reform. The guidance was effective beginning March 12, 2020 and can be applied
prospectively through December 31, 2022. In January 2021, the FASB issued ASU No. 2021-01, &#x201c;Reference Rate Reform (Topic 848):
Scope,&#x201d; which clarified the scope and application of the original guidance. The Company plans to adopt both ASUs when LIBOR is
discontinued. The Company is currently evaluating the impact of the new ASUs on its condensed consolidated financial statements. As of
the date of this report, the Company has determined that only its obligations under the credit facility as described in &#x201c;Note 8
&#x2013; Long Term Debt would be impacted by these ASUs. The Company&#x2019;s obligations under
its credit facility permit for payment of annual rate of interests on its obligations using prime rate or LIBOR.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
August 2020, the FASB issued ASU No. 2020-06, &#x201c;Debt &#x2013; Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives
and Hedging &#x2013; Contracts in Entity&#x2019;s Own Equity.&#x201d; ASU 2020-06 simplifies the accounting for convertible instruments
by removing major separation models and removing certain settlement condition qualifiers for the derivatives scope exception for contracts
in an entity&#x2019;s own equity, and simplifies the related diluted net income per share calculation for both Subtopics. ASU 2020-06
is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2023, for the Company as an
SRC. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020, including interim periods within
those fiscal years. The Company is currently evaluating the impact of this ASU on its consolidated financial statements and disclosures.&lt;/span&gt;&lt;/p&gt;

</PESI:NewAccountingPronouncementsNotYetAdoptedPolicyPolicyTextBlock>
    <us-gaap:RevenueFromContractWithCustomerTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_80F_eus-gaap--RevenueFromContractWithCustomerTextBlock_zYIyDTBzT8Md" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;3.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_823_zNPCskwq0OH3"&gt;Revenue&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Disaggregation
of Revenue&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
general, the Company&#x2019;s business segmentation is aligned according to the nature and economic characteristics of our services and
provides meaningful disaggregation of each business segment&#x2019;s results of operations. The nature of the Company&#x2019;s performance
obligations within our Treatment and Services Segments results in the recognition of our revenue primarily over time. The following tables
present further disaggregation of our revenues by different categories for our Services and Treatment Segments:&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89E_eus-gaap--DisaggregationOfRevenueTableTextBlock_zblVZNYlnOB7" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B4_zhTL3GfAHGMc" style="display: none"&gt;Schedule Of Disaggregation Of Revenue&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;Revenue by Contract Type&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 40%"&gt;Fixed price&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zRSdedTL0Hha" style="width: 6%; text-align: right" title="Net revenues"&gt;7,479&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zrKYYmDxnKlk" style="width: 6%; text-align: right" title="Net revenues"&gt;5,761&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember_zuAKOlTMnJU3" style="width: 6%; text-align: right" title="Net revenues"&gt;13,240&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zjfpx9A1tbYe" style="width: 6%; text-align: right" title="Net revenues"&gt;7,495&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zZeFU00D9Lee" style="width: 6%; text-align: right" title="Net revenues"&gt;2,581&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember_zaoJa0zVUxvb" style="width: 6%; text-align: right" title="Net revenues"&gt;10,076&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Time and materials&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zPuiOTfbkRX4" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0606"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zdkaN8tqPio9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;2,675&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember_z1cZTrfS0QLf" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;2,675&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zzXdvdI9qtu5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0612"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_ztz8MXDd85Fg" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;13,057&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember_zPPI6L00S71l" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;13,057&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zuovAbXk4qw" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,479&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4nPmUQFZGYf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;8,436&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_znpiiV2LFe87" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,915&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zq6926s7aiKc" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,495&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zFDtOHx8WARf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,638&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331_zsFdwRwklUu9" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;23,133&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;Revenue by generator&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 40%; text-align: left"&gt;Domestic government&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zyrHGdufK3j9" style="width: 6%; text-align: right" title="Net revenues"&gt;5,815&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z11nTlMF9l8l" style="width: 6%; text-align: right" title="Net revenues"&gt;8,245&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember_zek4bjrmT7Cj" style="width: 6%; text-align: right" title="Net revenues"&gt;14,060&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zSoq6aNo8HYc" style="width: 6%; text-align: right" title="Net revenues"&gt;4,598&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zp7tk5Q9uuX3" style="width: 6%; text-align: right" title="Net revenues"&gt;12,661&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember_zs1aB9HYD7P4" style="width: 6%; text-align: right" title="Net revenues"&gt;17,259&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Domestic commercial&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zxhrO38VKVl6" style="text-align: right" title="Net revenues"&gt;1,436&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zYV3KI96IvU3" style="text-align: right" title="Net revenues"&gt;162&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticCommercialMember_z4xbXKxYWI9c" style="text-align: right" title="Net revenues"&gt;1,598&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zH1QyRuetIJ6" style="text-align: right" title="Net revenues"&gt;2,265&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zXwWDKxN0Mj" style="text-align: right" title="Net revenues"&gt;590&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticCommercialMember_z4Zg5NdHpz33" style="text-align: right" title="Net revenues"&gt;2,855&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Foreign government&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zLRMWg0ESik8" style="text-align: right" title="Net revenues"&gt;92&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zX7cTBSlIG63" style="text-align: right" title="Net revenues"&gt;6&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember_zI7lVeazmnQh" style="text-align: right" title="Net revenues"&gt;98&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zGsZ7g21fVRe" style="text-align: right" title="Net revenues"&gt;534&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zo3svWmlj787" style="text-align: right" title="Net revenues"&gt;2,364&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember_zqQZNmuQ2wm4" style="text-align: right" title="Net revenues"&gt;2,898&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Foreign commercial&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zIamOTwVsnX2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;136&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zXTxzKFWkeg2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;23&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignCommercialMember_zqGPSI8fuoYa" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;159&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zzO3upbQyhQk" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;98&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zj3KNXsHpjJ9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;23&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignCommercialMember_zHX7WCxtttl7" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;121&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zI1fuPP2eN7d" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,479&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4wEOX4DuVll" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;8,436&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zsAI0DGsCrcg" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,915&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_znfGely9Nsd" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,495&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zF8LPPHIeGDi" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,638&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331_zDLh8fQmgdag" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;23,133&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8A8_zeGmJ0vV3emd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Contract
Liabilities&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p id="xdx_89D_eus-gaap--ContractWithCustomerAssetAndLiabilityTableTextBlock_zggie9TBzpJi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s contract liabilities consist of deferred revenues which represent advance payment from customers in advance of the completion
of our performance obligation. The following table represents changes in our contract liabilities balances:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span&gt;&lt;span id="xdx_8B6_zZsYp0Benrya" style="display: none"&gt;Schedule Of Contract   Liabilities&lt;/span&gt;&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Year-to-date&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Year-to-date&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;December 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Change ($)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Change (%)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Contract liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 34%; text-align: left"&gt;Deferred revenue&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--DeferredRevenueCurrent_iI_pn3n3_c20220331_zWEBaOVfP1Sd" style="width: 12%; text-align: right" title="Deferred revenue"&gt;2,707&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--DeferredRevenueCurrent_iI_pn3n3_c20211231_zDCq8LZQtTK4" style="width: 14%; text-align: right" title="Deferred revenue"&gt;5,580&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--IncreaseDecreaseInContractWithCustomerLiability_pn3n3_c20220101__20220331__us-gaap--AwardDateAxis__custom--YearToDateChangesMember_z0h2pQ4Yyj2d" style="width: 12%; text-align: right" title="Changes in deferred revenue"&gt;(2,873&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_ecustom--ChangesInDeferredRevenuePercentage_pid_dp_uPure_c20220101__20220331__us-gaap--AwardDateAxis__custom--YearToDateChangesMember_zlZTYjyG9xA4" style="width: 12%; text-align: right" title="Changes in deferred revenue, percentage"&gt;(51.5&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8AB_zAntKcPfO4wf" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
decrease was primarily due to revenue recognized in connection with a Services Segment contract. The decrease was also attributed to
more processing of Treatment Segment&#x2019;s backlog due to continued delays in waste receipts from certain customers from the impact
of COVID-19.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;During
the three months ended March 31, 2022 and 2021, the Company recognized revenue of $&lt;span id="xdx_908_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_pp0p0_c20220101__20220331_z7ZgCEwb7Px1" title="Revenue recognized"&gt;3,521,000&lt;/span&gt; and $&lt;span id="xdx_90A_eus-gaap--ContractWithCustomerLiabilityRevenueRecognized_pp0p0_c20210101__20210331_zbceIPuO4aDe" title="Revenue recognized"&gt;4,311,000&lt;/span&gt;, respectively, related to
untreated waste that was in the Company&#x2019;s control as of the beginning of each respective year. Revenue recognized in each period
related to performance obligations satisfied within the respective period.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Remaining
Performance Obligations&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company applies the practical expedient in paragraph 606-10-50-14 and does not disclose information about remaining performance obligations
that have original expected durations of one year or less.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Within
our Services Segment, there are service contracts which provide that the Company has a right to consideration from a customer in an amount
that corresponds directly with the value to the customer of our performance completed to date. For those contracts, the Company has utilized
the practical expedient in ASC 606-10-55-18, which allows the Company to recognize revenue in the amount for which we have the right
to invoice; accordingly, the Company does not disclose the value of remaining performance obligations for those contracts.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s contracts and subcontracts relating to activities at governmental sites generally allow for termination for convenience
at any time at the government&#x2019;s option without payment of a substantial penalty. The Company does not disclose remaining performance
obligations on these contracts.&lt;/span&gt;&lt;/p&gt;

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




</us-gaap:RevenueFromContractWithCustomerTextBlock>
    <us-gaap:DisaggregationOfRevenueTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_89E_eus-gaap--DisaggregationOfRevenueTableTextBlock_zblVZNYlnOB7" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B4_zhTL3GfAHGMc" style="display: none"&gt;Schedule Of Disaggregation Of Revenue&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;Revenue by Contract Type&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 40%"&gt;Fixed price&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zRSdedTL0Hha" style="width: 6%; text-align: right" title="Net revenues"&gt;7,479&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zrKYYmDxnKlk" style="width: 6%; text-align: right" title="Net revenues"&gt;5,761&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember_zuAKOlTMnJU3" style="width: 6%; text-align: right" title="Net revenues"&gt;13,240&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zjfpx9A1tbYe" style="width: 6%; text-align: right" title="Net revenues"&gt;7,495&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zZeFU00D9Lee" style="width: 6%; text-align: right" title="Net revenues"&gt;2,581&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--FixedPriceMember_zaoJa0zVUxvb" style="width: 6%; text-align: right" title="Net revenues"&gt;10,076&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Time and materials&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zPuiOTfbkRX4" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0606"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zdkaN8tqPio9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;2,675&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember_z1cZTrfS0QLf" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;2,675&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zzXdvdI9qtu5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0612"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_ztz8MXDd85Fg" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;13,057&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--ConcentrationRiskByBenchmarkAxis__custom--TimeandMaterialsMember_zPPI6L00S71l" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;13,057&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zuovAbXk4qw" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,479&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4nPmUQFZGYf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;8,436&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_znpiiV2LFe87" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,915&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zq6926s7aiKc" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,495&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zFDtOHx8WARf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,638&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331_zsFdwRwklUu9" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;23,133&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;Revenue by generator&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 40%; text-align: left"&gt;Domestic government&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zyrHGdufK3j9" style="width: 6%; text-align: right" title="Net revenues"&gt;5,815&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z11nTlMF9l8l" style="width: 6%; text-align: right" title="Net revenues"&gt;8,245&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember_zek4bjrmT7Cj" style="width: 6%; text-align: right" title="Net revenues"&gt;14,060&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zSoq6aNo8HYc" style="width: 6%; text-align: right" title="Net revenues"&gt;4,598&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zp7tk5Q9uuX3" style="width: 6%; text-align: right" title="Net revenues"&gt;12,661&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticGovernmentMember_zs1aB9HYD7P4" style="width: 6%; text-align: right" title="Net revenues"&gt;17,259&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Domestic commercial&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zxhrO38VKVl6" style="text-align: right" title="Net revenues"&gt;1,436&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zYV3KI96IvU3" style="text-align: right" title="Net revenues"&gt;162&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--DomesticCommercialMember_z4xbXKxYWI9c" style="text-align: right" title="Net revenues"&gt;1,598&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zH1QyRuetIJ6" style="text-align: right" title="Net revenues"&gt;2,265&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zXwWDKxN0Mj" style="text-align: right" title="Net revenues"&gt;590&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--DomesticCommercialMember_z4Zg5NdHpz33" style="text-align: right" title="Net revenues"&gt;2,855&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Foreign government&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zLRMWg0ESik8" style="text-align: right" title="Net revenues"&gt;92&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zX7cTBSlIG63" style="text-align: right" title="Net revenues"&gt;6&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember_zI7lVeazmnQh" style="text-align: right" title="Net revenues"&gt;98&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zGsZ7g21fVRe" style="text-align: right" title="Net revenues"&gt;534&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zo3svWmlj787" style="text-align: right" title="Net revenues"&gt;2,364&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignGovernmentMember_zqQZNmuQ2wm4" style="text-align: right" title="Net revenues"&gt;2,898&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Foreign commercial&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zIamOTwVsnX2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;136&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zXTxzKFWkeg2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;23&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__srt--MajorCustomersAxis__custom--ForeignCommercialMember_zqGPSI8fuoYa" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;159&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zzO3upbQyhQk" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;98&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignCommercialMember__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zj3KNXsHpjJ9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;23&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__srt--MajorCustomersAxis__custom--ForeignCommercialMember_zHX7WCxtttl7" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net revenues"&gt;121&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zI1fuPP2eN7d" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,479&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4wEOX4DuVll" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;8,436&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zsAI0DGsCrcg" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,915&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_znfGely9Nsd" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;7,495&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zF8LPPHIeGDi" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;15,638&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20210101__20210331_zDLh8fQmgdag" style="border-bottom: Black 2.5pt double; text-align: right" title="Net revenues"&gt;23,133&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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      unitRef="USD">7479000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2022-01-012022-03-31_custom_FixedPriceMember_custom_ServicesMember"
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      unitRef="USD">5761000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31_custom_FixedPriceMember_custom_TreatmentMember"
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      unitRef="USD">7495000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31_custom_FixedPriceMember_custom_ServicesMember"
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      unitRef="USD">2581000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      unitRef="USD">10076000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2022-01-012022-03-31_custom_TimeandMaterialsMember_custom_ServicesMember"
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      unitRef="USD">2675000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      unitRef="USD">2675000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31_custom_TimeandMaterialsMember_custom_ServicesMember"
      decimals="-3"
      unitRef="USD">13057000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31_custom_TimeandMaterialsMember"
      decimals="-3"
      unitRef="USD">13057000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2022-01-012022-03-31_custom_TreatmentMember"
      decimals="-3"
      unitRef="USD">7479000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2022-01-012022-03-31_custom_ServicesMember"
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      unitRef="USD">8436000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2022-01-01to2022-03-31"
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      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
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      unitRef="USD">7495000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31_custom_ServicesMember"
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      unitRef="USD">15638000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">23133000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2022-01-012022-03-31_custom_DomesticGovernmentMember_custom_ServicesMember"
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      contextRef="From2022-01-012022-03-31_custom_DomesticGovernmentMember"
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      contextRef="From2021-01-012021-03-31_custom_DomesticGovernmentMember_custom_TreatmentMember"
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      unitRef="USD">4598000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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      contextRef="From2021-01-012021-03-31_custom_DomesticGovernmentMember_custom_ServicesMember"
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      contextRef="From2021-01-012021-03-31_custom_DomesticGovernmentMember"
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      unitRef="USD">2265000</us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax>
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Company&#x2019;s contract liabilities consist of deferred revenues which represent advance payment from customers in advance of the completion
of our performance obligation. The following table represents changes in our contract liabilities balances:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span&gt;&lt;span id="xdx_8B6_zZsYp0Benrya" style="display: none"&gt;Schedule Of Contract   Liabilities&lt;/span&gt;&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Year-to-date&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Year-to-date&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;December 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Change ($)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Change (%)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Contract liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 34%; text-align: left"&gt;Deferred revenue&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--DeferredRevenueCurrent_iI_pn3n3_c20220331_zWEBaOVfP1Sd" style="width: 12%; text-align: right" title="Deferred revenue"&gt;2,707&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--DeferredRevenueCurrent_iI_pn3n3_c20211231_zDCq8LZQtTK4" style="width: 14%; text-align: right" title="Deferred revenue"&gt;5,580&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--IncreaseDecreaseInContractWithCustomerLiability_pn3n3_c20220101__20220331__us-gaap--AwardDateAxis__custom--YearToDateChangesMember_z0h2pQ4Yyj2d" style="width: 12%; text-align: right" title="Changes in deferred revenue"&gt;(2,873&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_ecustom--ChangesInDeferredRevenuePercentage_pid_dp_uPure_c20220101__20220331__us-gaap--AwardDateAxis__custom--YearToDateChangesMember_zlZTYjyG9xA4" style="width: 12%; text-align: right" title="Changes in deferred revenue, percentage"&gt;(51.5&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock>
    <us-gaap:DeferredRevenueCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">2707000</us-gaap:DeferredRevenueCurrent>
    <us-gaap:DeferredRevenueCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">5580000</us-gaap:DeferredRevenueCurrent>
    <us-gaap:IncreaseDecreaseInContractWithCustomerLiability
      contextRef="From2022-01-012022-03-31_custom_YearToDateChangesMember"
      decimals="-3"
      unitRef="USD">-2873000</us-gaap:IncreaseDecreaseInContractWithCustomerLiability>
    <PESI:ChangesInDeferredRevenuePercentage
      contextRef="From2022-01-012022-03-31_custom_YearToDateChangesMember"
      decimals="INF"
      unitRef="Pure">-0.515</PESI:ChangesInDeferredRevenuePercentage>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="From2022-01-01to2022-03-31"
      decimals="0"
      unitRef="USD">3521000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <us-gaap:ContractWithCustomerLiabilityRevenueRecognized
      contextRef="From2021-01-012021-03-31"
      decimals="0"
      unitRef="USD">4311000</us-gaap:ContractWithCustomerLiabilityRevenueRecognized>
    <PESI:LesseeOperatingAndFinanceLeasesTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_804_ecustom--LesseeOperatingAndFinanceLeasesTextBlock_zmPTXT6NwdOi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;4.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_82C_zVglghlftdh2"&gt;Leases&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;At
the inception of an arrangement, the Company determines if an arrangement is, or contains, a lease based on facts and circumstances present
in that arrangement. Lease classifications, recognition, and measurement are then determined at the lease commencement date.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s operating lease right-of-use (&#x201c;ROU&#x201d;) assets and operating lease liabilities represent primarily leases for
office and warehouse spaces used to conduct our business. Finance leases consist primarily of processing and transport equipment used
by our facilities&#x2019; operations.&lt;/span&gt;&lt;/p&gt;

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

&lt;p id="xdx_893_eus-gaap--LeaseCostTableTextBlock_zt24IvQgXLY4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
components of lease cost for the Company&#x2019;s leases were as follows (in thousands):&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B0_z9rAHak5pZ05" style="display: none"&gt;Schedule Of Components Of Lease Cost&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 70%"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49F_20220101__20220331_zjb4lDtKSdk9" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_494_20210101__20210331_zYnAk9mJsKw9" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Operating Lease:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--OperatingLeaseCost_pn3n3_maLCzrDO_zllE5wgYxAoc" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 60%; text-align: left; padding-bottom: 1.5pt"&gt;Lease cost&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;157&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;111&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Finance Leases:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_402_eus-gaap--FinanceLeaseRightOfUseAssetAmortization_pn3n3_maFLzRjv_zIyafWuLlNJ1" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Amortization of ROU assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;47&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;59&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_403_eus-gaap--FinanceLeaseInterestExpense_pn3n3_maFLzRjv_z7GvUJuxGP24" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Interest on lease liability&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;11&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;19&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_ecustom--FinanceLease_iT_pn3n3_mtFLzRjv_maLCzrDO_zYIsQvIYO46f" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Finance leases&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;58&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;78&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_409_eus-gaap--ShortTermLeaseCost_pn3n3_maLCzrDO_z3g2Iennt7V" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Short-term lease rent expense&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--LeaseCost_iT_pn3n3_mtLCzrDO_zHfeB9L0aVDi" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Total lease cost&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;218&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;192&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8A7_zJ2Vazyiajeh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_896_ecustom--ScheduleOfWeightedAverageLeaseTableTextBlock_z9Y5QjFrqDP" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2022 were:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B0_zfV5GUIU0Q0j" style="display: none"&gt;Schedule Of Weighted Average Lease&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Operating Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Finance Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Weighted average remaining lease terms (years)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20220331_zjNWYFHjaAC2" title="Operating leases, weighted average remaining lease terms (years)"&gt;6.7&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--FinanceLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20220331_zOIqTnll2izj" title="Finance leases, weighted average remaining lease terms (years)"&gt;4.0&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Weighted average discount rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20220331_z9VvWM4fvze3" title="Operating leases, weighted average discount rate"&gt;7.6&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20220331_zuftDJXnouY4" title="Finance leases, weighted average discount rate"&gt;6.1&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2021 were:&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Operating Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Finance Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Weighted average remaining lease terms (years)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zx0pgyEun3F3" title="Operating leases, weighted average remaining lease terms (years)"&gt;7.8&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--FinanceLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zZmrNfygjUWd" title="Finance leases, weighted average remaining lease terms (years)"&gt;3.4&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Weighted average discount rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zpAYXHNvJB4l" title="Operating leases, weighted average discount rate"&gt;7.8&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zA9EJiJWBnc9" title="Finance leases, weighted average discount rate"&gt;6.8&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8A3_z3C9cYcSGMF1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;




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

&lt;p id="xdx_898_ecustom--OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_znafRXLUOFpk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2022 to the operating and finance
lease liabilities recorded on the balance sheet (in thousands):&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span&gt;&lt;span id="xdx_8B5_zsrRKozKOYkl" style="display: none"&gt;Schedule Of Operating And Finance Lease Liability Maturity&lt;/span&gt;&lt;/span&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Operating Leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Finance Leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: right"&gt;2022 (Remaining)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_zuc6FRH5Wste" style="width: 16%; text-align: right" title="Operating Leases 2022"&gt;433&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_znzuHA5YDdU8" style="width: 16%; text-align: right" title="Finance Leases 2022"&gt;315&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;2023&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zXvD26aAJZ0e" style="text-align: right" title="Operating Leases 2023"&gt;560&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zbijyDZ2RL58" style="text-align: right" title="Finance Leases 2023"&gt;327&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;2024&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zKwzUCcxmmFf" style="text-align: right" title="Operating Leases 2024"&gt;419&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zIjOyYXMjBH9" style="text-align: right" title="Finance Leases 2024"&gt;323&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;2025&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zW7gkK12YBx5" style="text-align: right" title="Operating Leases 2025"&gt;328&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zFxYKUIridpg" style="text-align: right" title="Finance Leases 2025"&gt;300&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;2026&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20220331_zIYpb73EoZKd" style="text-align: right" title="Operating Leases 2026"&gt;304&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20220331_ziiE6r4L1FF3" style="text-align: right" title="Finance Leases 2026"&gt;171&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;2027 and thereafter&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_ecustom--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_iI_pn3n3_c20220331_zjVwKV2RGMv3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases 2027 and thereafter"&gt;955&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_ecustom--FinanceLeaseLiabilityPaymentsDueAfterYearFour_iI_pn3n3_c20220331_zuD3bEpnS7Tl" style="border-bottom: Black 1.5pt solid; text-align: right" title="2027 and thereafter Finance Leases"&gt;20&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;Total undiscounted lease payments&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_zwV3XZJqjire" style="text-align: right" title="Operating Leases Total undiscounted lease payments"&gt;2,999&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FinanceLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_ztEka6B65A7c" style="text-align: right" title="Finance Leases Total undiscounted lease payments"&gt;1,456&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;Less: Imputed interest&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zCYzTZfO5lai" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases Less: Imputed interest"&gt;(662&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FinanceLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zEBDItBDIfc2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Finance Leases Less: Imputed interest"&gt;(182&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;Present value of lease payments&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--OperatingLeaseLiability_iI_pn3n3_c20220331_z84OoepTK8N1" style="border-bottom: Black 2.5pt double; text-align: right" title="Operating Leases Present value of lease payments"&gt;2,337&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FinanceLeaseLiability_iI_pn3n3_c20220331_zUrfRlxVhUKj" style="border-bottom: Black 2.5pt double; text-align: right" title="Finance Leases Present value of lease payments"&gt;1,274&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Current portion of operating lease obligations&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_c20220331_z8gTa0fgsguj" style="text-align: right" title="Current portion of operating lease obligations"&gt;416&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Long-term operating lease obligations, less current portion&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z2ohNXwmiEed" style="text-align: right" title="Long-term operating lease obligations, less current portion"&gt;1,921&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Current portion of finance lease obligations&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FinanceLeaseLiabilityCurrent_iI_pn3n3_c20220331_zmbeoaOaquh4" style="text-align: right" title="Current portion of finance lease obligations"&gt;354&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Long-term finance lease obligations, less current portion&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinanceLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z6OAv34e1tE8" style="text-align: right" title="Long-term finance lease obligations, less current portion"&gt;920&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


&lt;p id="xdx_8A8_z5hSjJQ73l52" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89D_ecustom--ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock_zISe4Tmokw69" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Supplemental
cash flow and other information related to our leases were as follows (in thousands):&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span&gt;&lt;span id="xdx_8BB_zU3mxFMNXfbg" style="display: none"&gt;Schedule Of Supplemental Cash Flow And Other Information Related To Leases&lt;/span&gt;&lt;/span&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_493_20220101__20220331_zQiAGdyMLB0h" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_495_20210101__20210331_zgFJ4jiBU6fe" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Cash paid for amounts included in the measurement of lease liabilities:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--OperatingLeasePayments_pn3n3_z0sAAebByHV6" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; width: 60%; text-align: left"&gt;Operating cash flow from operating leases&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;143&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;101&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--FinanceLeaseInterestExpense_pn3n3_zh6w5up7BYql" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Operating cash flow from finance leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;19&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40D_eus-gaap--FinanceLeasePrincipalPayments_pn3n3_zIufe2dC5xpg" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Financing cash flow from finance leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;58&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;114&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;ROU assets obtained in exchange for lease obligations for:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_406_eus-gaap--RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_pn3n3_zR8g5yrgpAag" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Finance liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;147&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0802"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_pn3n3_z7PFt6jJ6Zv3" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Operating liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$ &lt;/td&gt;&lt;td style="text-align: right"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0804"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0805"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8AB_zjXXEHXN626b" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&#160;&lt;/p&gt;

</PESI:LesseeOperatingAndFinanceLeasesTextBlock>
    <us-gaap:LeaseCostTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_893_eus-gaap--LeaseCostTableTextBlock_zt24IvQgXLY4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
components of lease cost for the Company&#x2019;s leases were as follows (in thousands):&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B0_z9rAHak5pZ05" style="display: none"&gt;Schedule Of Components Of Lease Cost&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 70%"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49F_20220101__20220331_zjb4lDtKSdk9" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_494_20210101__20210331_zYnAk9mJsKw9" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Operating Lease:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--OperatingLeaseCost_pn3n3_maLCzrDO_zllE5wgYxAoc" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 60%; text-align: left; padding-bottom: 1.5pt"&gt;Lease cost&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;157&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;111&lt;/td&gt;&lt;td style="width: 1%; padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Finance Leases:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_402_eus-gaap--FinanceLeaseRightOfUseAssetAmortization_pn3n3_maFLzRjv_zIyafWuLlNJ1" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Amortization of ROU assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;47&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;59&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_403_eus-gaap--FinanceLeaseInterestExpense_pn3n3_maFLzRjv_z7GvUJuxGP24" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Interest on lease liability&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;11&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;19&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_ecustom--FinanceLease_iT_pn3n3_mtFLzRjv_maLCzrDO_zYIsQvIYO46f" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Finance leases&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;58&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;78&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_409_eus-gaap--ShortTermLeaseCost_pn3n3_maLCzrDO_z3g2Iennt7V" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Short-term lease rent expense&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;3&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--LeaseCost_iT_pn3n3_mtLCzrDO_zHfeB9L0aVDi" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Total lease cost&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;218&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;192&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</us-gaap:LeaseCostTableTextBlock>
    <us-gaap:OperatingLeaseCost
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">157000</us-gaap:OperatingLeaseCost>
    <us-gaap:OperatingLeaseCost
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">111000</us-gaap:OperatingLeaseCost>
    <us-gaap:FinanceLeaseRightOfUseAssetAmortization
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">47000</us-gaap:FinanceLeaseRightOfUseAssetAmortization>
    <us-gaap:FinanceLeaseRightOfUseAssetAmortization
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">59000</us-gaap:FinanceLeaseRightOfUseAssetAmortization>
    <us-gaap:FinanceLeaseInterestExpense
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">11000</us-gaap:FinanceLeaseInterestExpense>
    <us-gaap:FinanceLeaseInterestExpense
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">19000</us-gaap:FinanceLeaseInterestExpense>
    <PESI:FinanceLease
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">58000</PESI:FinanceLease>
    <PESI:FinanceLease
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">78000</PESI:FinanceLease>
    <us-gaap:ShortTermLeaseCost
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">3000</us-gaap:ShortTermLeaseCost>
    <us-gaap:ShortTermLeaseCost
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">3000</us-gaap:ShortTermLeaseCost>
    <us-gaap:LeaseCost
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">218000</us-gaap:LeaseCost>
    <us-gaap:LeaseCost
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">192000</us-gaap:LeaseCost>
    <PESI:ScheduleOfWeightedAverageLeaseTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_896_ecustom--ScheduleOfWeightedAverageLeaseTableTextBlock_z9Y5QjFrqDP" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2022 were:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B0_zfV5GUIU0Q0j" style="display: none"&gt;Schedule Of Weighted Average Lease&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Operating Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Finance Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Weighted average remaining lease terms (years)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_905_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20220331_zjNWYFHjaAC2" title="Operating leases, weighted average remaining lease terms (years)"&gt;6.7&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--FinanceLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20220331_zOIqTnll2izj" title="Finance leases, weighted average remaining lease terms (years)"&gt;4.0&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Weighted average discount rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_906_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20220331_z9VvWM4fvze3" title="Operating leases, weighted average discount rate"&gt;7.6&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20220331_zuftDJXnouY4" title="Finance leases, weighted average discount rate"&gt;6.1&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
weighted average remaining lease term and the weighted average discount rate for operating and finance leases at March 31, 2021 were:&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Operating Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Finance Leases&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Weighted average remaining lease terms (years)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_90A_eus-gaap--OperatingLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zx0pgyEun3F3" title="Operating leases, weighted average remaining lease terms (years)"&gt;7.8&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;&lt;span id="xdx_908_eus-gaap--FinanceLeaseWeightedAverageRemainingLeaseTerm1_iI_dtY_c20210331_zZmrNfygjUWd" title="Finance leases, weighted average remaining lease terms (years)"&gt;3.4&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Weighted average discount rate&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_901_eus-gaap--OperatingLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zpAYXHNvJB4l" title="Operating leases, weighted average discount rate"&gt;7.8&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span id="xdx_90D_eus-gaap--FinanceLeaseWeightedAverageDiscountRatePercent_iI_pid_dp_uPure_c20210331_zA9EJiJWBnc9" title="Finance leases, weighted average discount rate"&gt;6.8&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;%&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</PESI:ScheduleOfWeightedAverageLeaseTableTextBlock>
    <us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1 contextRef="AsOf2022-03-31">P6Y8M12D</us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1>
    <us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1 contextRef="AsOf2022-03-31">P4Y</us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1>
    <us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent contextRef="AsOf2022-03-31" decimals="INF" unitRef="Pure">0.076</us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent>
    <us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent contextRef="AsOf2022-03-31" decimals="INF" unitRef="Pure">0.061</us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent>
    <us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1 contextRef="AsOf2021-03-31">P7Y9M18D</us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1>
    <us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1 contextRef="AsOf2021-03-31">P3Y4M24D</us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1>
    <us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent contextRef="AsOf2021-03-31" decimals="INF" unitRef="Pure">0.078</us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent>
    <us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent contextRef="AsOf2021-03-31" decimals="INF" unitRef="Pure">0.068</us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent>
    <PESI:OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_898_ecustom--OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock_znafRXLUOFpk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table reconciles the undiscounted cash flows for the operating and finance leases at March 31, 2022 to the operating and finance
lease liabilities recorded on the balance sheet (in thousands):&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span&gt;&lt;span id="xdx_8B5_zsrRKozKOYkl" style="display: none"&gt;Schedule Of Operating And Finance Lease Liability Maturity&lt;/span&gt;&lt;/span&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Operating Leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Finance Leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: right"&gt;2022 (Remaining)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_zuc6FRH5Wste" style="width: 16%; text-align: right" title="Operating Leases 2022"&gt;433&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_iI_pn3n3_c20220331_znzuHA5YDdU8" style="width: 16%; text-align: right" title="Finance Leases 2022"&gt;315&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;2023&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zXvD26aAJZ0e" style="text-align: right" title="Operating Leases 2023"&gt;560&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pn3n3_c20220331_zbijyDZ2RL58" style="text-align: right" title="Finance Leases 2023"&gt;327&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;2024&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zKwzUCcxmmFf" style="text-align: right" title="Operating Leases 2024"&gt;419&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearTwo_iI_pn3n3_c20220331_zIjOyYXMjBH9" style="text-align: right" title="Finance Leases 2024"&gt;323&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;2025&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zW7gkK12YBx5" style="text-align: right" title="Operating Leases 2025"&gt;328&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearThree_iI_pn3n3_c20220331_zFxYKUIridpg" style="text-align: right" title="Finance Leases 2025"&gt;300&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;2026&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20220331_zIYpb73EoZKd" style="text-align: right" title="Operating Leases 2026"&gt;304&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--FinanceLeaseLiabilityPaymentsDueYearFour_iI_pn3n3_c20220331_ziiE6r4L1FF3" style="text-align: right" title="Finance Leases 2026"&gt;171&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;2027 and thereafter&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_ecustom--LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_iI_pn3n3_c20220331_zjVwKV2RGMv3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases 2027 and thereafter"&gt;955&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_ecustom--FinanceLeaseLiabilityPaymentsDueAfterYearFour_iI_pn3n3_c20220331_zuD3bEpnS7Tl" style="border-bottom: Black 1.5pt solid; text-align: right" title="2027 and thereafter Finance Leases"&gt;20&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: right"&gt;Total undiscounted lease payments&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_zwV3XZJqjire" style="text-align: right" title="Operating Leases Total undiscounted lease payments"&gt;2,999&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FinanceLeaseLiabilityPaymentsDue_iI_pn3n3_c20220331_ztEka6B65A7c" style="text-align: right" title="Finance Leases Total undiscounted lease payments"&gt;1,456&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: right"&gt;Less: Imputed interest&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zCYzTZfO5lai" style="border-bottom: Black 1.5pt solid; text-align: right" title="Operating Leases Less: Imputed interest"&gt;(662&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FinanceLeaseLiabilityUndiscountedExcessAmount_iNI_pn3n3_di_c20220331_zEBDItBDIfc2" style="border-bottom: Black 1.5pt solid; text-align: right" title="Finance Leases Less: Imputed interest"&gt;(182&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;Present value of lease payments&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--OperatingLeaseLiability_iI_pn3n3_c20220331_z84OoepTK8N1" style="border-bottom: Black 2.5pt double; text-align: right" title="Operating Leases Present value of lease payments"&gt;2,337&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FinanceLeaseLiability_iI_pn3n3_c20220331_zUrfRlxVhUKj" style="border-bottom: Black 2.5pt double; text-align: right" title="Finance Leases Present value of lease payments"&gt;1,274&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Current portion of operating lease obligations&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityCurrent_iI_pn3n3_c20220331_z8gTa0fgsguj" style="text-align: right" title="Current portion of operating lease obligations"&gt;416&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Long-term operating lease obligations, less current portion&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--OperatingLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z2ohNXwmiEed" style="text-align: right" title="Long-term operating lease obligations, less current portion"&gt;1,921&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Current portion of finance lease obligations&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FinanceLeaseLiabilityCurrent_iI_pn3n3_c20220331_zmbeoaOaquh4" style="text-align: right" title="Current portion of finance lease obligations"&gt;354&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 0pt; text-align: left"&gt;Long-term finance lease obligations, less current portion&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&#x2014;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinanceLeaseLiabilityNoncurrent_iI_pn3n3_c20220331_z6OAv34e1tE8" style="text-align: right" title="Long-term finance lease obligations, less current portion"&gt;920&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


</PESI:OperatingLeaseAndFinanceLeaseLiabilityMaturityTableTextBlock>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">433000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear>
    <us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">315000</us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">560000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths>
    <us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">327000</us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">419000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo>
    <us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">323000</us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">328000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree>
    <us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">300000</us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">304000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour>
    <us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">171000</us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour>
    <PESI:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">955000</PESI:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour>
    <PESI:FinanceLeaseLiabilityPaymentsDueAfterYearFour contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">20000</PESI:FinanceLeaseLiabilityPaymentsDueAfterYearFour>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">2999000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue>
    <us-gaap:FinanceLeaseLiabilityPaymentsDue contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">1456000</us-gaap:FinanceLeaseLiabilityPaymentsDue>
    <us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">662000</us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount>
    <us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">182000</us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount>
    <us-gaap:OperatingLeaseLiability contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">2337000</us-gaap:OperatingLeaseLiability>
    <us-gaap:FinanceLeaseLiability contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">1274000</us-gaap:FinanceLeaseLiability>
    <us-gaap:OperatingLeaseLiabilityCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">416000</us-gaap:OperatingLeaseLiabilityCurrent>
    <us-gaap:OperatingLeaseLiabilityNoncurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">1921000</us-gaap:OperatingLeaseLiabilityNoncurrent>
    <us-gaap:FinanceLeaseLiabilityCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">354000</us-gaap:FinanceLeaseLiabilityCurrent>
    <us-gaap:FinanceLeaseLiabilityNoncurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">920000</us-gaap:FinanceLeaseLiabilityNoncurrent>
    <PESI:ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_89D_ecustom--ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock_zISe4Tmokw69" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Supplemental
cash flow and other information related to our leases were as follows (in thousands):&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span&gt;&lt;span id="xdx_8BB_zU3mxFMNXfbg" style="display: none"&gt;Schedule Of Supplemental Cash Flow And Other Information Related To Leases&lt;/span&gt;&lt;/span&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_493_20220101__20220331_zQiAGdyMLB0h" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_495_20210101__20210331_zgFJ4jiBU6fe" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Cash paid for amounts included in the measurement of lease liabilities:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--OperatingLeasePayments_pn3n3_z0sAAebByHV6" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; width: 60%; text-align: left"&gt;Operating cash flow from operating leases&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;143&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;101&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--FinanceLeaseInterestExpense_pn3n3_zh6w5up7BYql" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Operating cash flow from finance leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;19&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40D_eus-gaap--FinanceLeasePrincipalPayments_pn3n3_zIufe2dC5xpg" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Financing cash flow from finance leases&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;58&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;114&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;ROU assets obtained in exchange for lease obligations for:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_406_eus-gaap--RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_pn3n3_zR8g5yrgpAag" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Finance liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;147&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0802"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_pn3n3_z7PFt6jJ6Zv3" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Operating liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$ &lt;/td&gt;&lt;td style="text-align: right"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0804"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0805"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</PESI:ScheduleOfSupplementalCashFlowAndOtherInformationRelatedToLeasesTableTextBlock>
    <us-gaap:OperatingLeasePayments
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">143000</us-gaap:OperatingLeasePayments>
    <us-gaap:OperatingLeasePayments
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">101000</us-gaap:OperatingLeasePayments>
    <us-gaap:FinanceLeaseInterestExpense
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">11000</us-gaap:FinanceLeaseInterestExpense>
    <us-gaap:FinanceLeaseInterestExpense
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">19000</us-gaap:FinanceLeaseInterestExpense>
    <us-gaap:FinanceLeasePrincipalPayments
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">58000</us-gaap:FinanceLeasePrincipalPayments>
    <us-gaap:FinanceLeasePrincipalPayments
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">114000</us-gaap:FinanceLeasePrincipalPayments>
    <us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">147000</us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability>
    <us-gaap:IntangibleAssetsDisclosureTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_804_eus-gaap--IntangibleAssetsDisclosureTextBlock_zMZjGvimMrr2" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;5.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_82C_zgaHxxApb3q3"&gt;Intangible
    Assets&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_891_eus-gaap--ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock_zwhYabos4pM2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table summarizes information relating to the Company&#x2019;s definite-lived intangible assets:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span&gt;&lt;span id="xdx_8B0_z0fLjiDVsYOd" style="display: none"&gt;Schedule Of Definite Lived Intangible Assets&lt;/span&gt;&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;December 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average&lt;/p&gt;
                                               &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Amortization &lt;/p&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Gross&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Net&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Gross&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Net&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Period&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Accumulated&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Accumulated&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;(Years)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amortization&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amortization&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;Other Intangibles (amount in thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 37%"&gt;Patent&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 5%; text-align: center"&gt;&lt;span id="xdx_90F_eus-gaap--FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_dtY_c20220101__20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zzgRUk9aDHz3" title="Weighted Average Amortization Period (Years)"&gt;8.3&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zbWPPs3iriTa" style="width: 5%; text-align: right"&gt;787&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zVOCxmcBsH98" style="width: 5%; text-align: right" title="Accumulated Amortization"&gt;(354&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zSQPmcTKMaG5" style="width: 5%; text-align: right" title="Net Carrying Amount"&gt;433&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zxT8cwI26Gi4" style="width: 5%; text-align: right" title="Gross Carrying Amount"&gt;787&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zxUPgpBRNq1f" style="width: 5%; text-align: right" title="Accumulated Amortization"&gt;(351&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zw3uzOOV8eEl" style="width: 5%; text-align: right" title="Net Carrying Amount"&gt;436&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Software&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_dtY_c20220101__20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zBCSR4wK2gJ" title="Weighted Average Amortization Period (Years)"&gt;3&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zoZ2Y5qWOT58" style="text-align: right" title="Gross Carrying Amount"&gt;606&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zVXeWd2DGLRj" style="text-align: right" title="Accumulated Amortization"&gt;(428&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zMQ084GyFwvj" style="text-align: right" title="Net Carrying Amount"&gt;178&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zrC4IWgXi7dc" style="text-align: right" title="Gross Carrying Amount"&gt;592&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zlWNOaA18DK" style="text-align: right" title="Accumulated Amortization"&gt;(415&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zkzCEhDOnRe3" style="text-align: right" title="Net Carrying Amount"&gt;177&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Customer relationships&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;span id="xdx_90F_eus-gaap--FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_dtY_c20220101__20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_zC3E92qGJbKj" title="Weighted Average Amortization Period (Years)"&gt;10&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_z5s7nXo5oY26" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross Carrying Amount"&gt;3,370&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_z3lXyqZVtQBh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Accumulated Amortization"&gt;(3,129&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_zqo0PluESwMh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net Carrying Amount"&gt;241&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_z2zedAExBUe7" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross Carrying Amount"&gt;3,370&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_zGIWeQ6r4oO3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Accumulated Amortization"&gt;(3,089&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_ziuQEqvkEKz9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net Carrying Amount"&gt;281&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331_zYfJk72FfGLk" style="border-bottom: Black 2.5pt double; text-align: right" title="Gross Carrying Amount"&gt;4,763&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331_z5wJDxBViWTe" style="border-bottom: Black 2.5pt double; text-align: right" title="Accumulated Amortization"&gt;(3,911&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331_zWCW1KOrHA8k" style="border-bottom: Black 2.5pt double; text-align: right" title="Net Carrying Amount"&gt;852&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231_zbxjypEyd448" style="border-bottom: Black 2.5pt double; text-align: right" title="Gross Carrying Amount"&gt;4,749&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231_zOjRd8OSY1jd" style="border-bottom: Black 2.5pt double; text-align: right" title="Accumulated Amortization"&gt;(3,855&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231_zjJWjbsYVHCf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net Carrying Amount"&gt;894&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8A6_zgIQp2T4fAfh" style="margin-top: 0; margin-bottom: 0"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
intangible assets noted above are amortized on a straight-line basis over their useful lives with the exception of customer relationships
which are being amortized using an accelerated method.&lt;/span&gt;&lt;/p&gt;

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




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

&lt;p id="xdx_89D_eus-gaap--ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_z2NYcw3Aq5hi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table summarizes the expected amortization over the next five years for our definite-lived intangible assets:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B6_ziA8jFzaPSgl" style="display: none"&gt;Schedule Of Finite Lived Intangible Assets, Future Amortization Expense&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 40%; margin-right: auto"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Amount&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; font-weight: normal; font-style: normal"&gt;Year&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font-style: italic"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 70%; font-weight: normal; font-style: normal; text-align: left"&gt;2022 (Remaining)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 26%; text-align: right"&gt;164&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;2023&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;178&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;2024&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;46&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;2025&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;2026&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


&lt;p id="xdx_8A1_zevDpGjeSsMd" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 1.75in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Amortization
expenses relating to the definite-lived intangible assets as discussed above were $&lt;span id="xdx_909_eus-gaap--AmortizationOfIntangibleAssets_pp0p0_c20220101__20220331_zjeiYzQYFfh4" title="Amortization of intangible asset"&gt;56,000&lt;/span&gt; and $&lt;span id="xdx_90B_eus-gaap--AmortizationOfIntangibleAssets_pp0p0_c20210101__20210331_zUJ8Vfhk4exk" title="Amortization of intangible asset"&gt;50,000&lt;/span&gt; for the three months ended March
31, 2022 and 2021, respectively.&lt;/span&gt;&lt;/p&gt;

</us-gaap:IntangibleAssetsDisclosureTextBlock>
    <us-gaap:ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_891_eus-gaap--ScheduleOfIndefiniteLivedIntangibleAssetsTableTextBlock_zwhYabos4pM2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table summarizes information relating to the Company&#x2019;s definite-lived intangible assets:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span&gt;&lt;span id="xdx_8B0_z0fLjiDVsYOd" style="display: none"&gt;Schedule Of Definite Lived Intangible Assets&lt;/span&gt;&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="10" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;December 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average&lt;/p&gt;
                                               &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Amortization &lt;/p&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Gross&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Net&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Gross&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Net&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Period&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Accumulated&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Accumulated&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Carrying&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;(Years)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amortization&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amortization&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Amount&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;Other Intangibles (amount in thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 37%"&gt;Patent&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 5%; text-align: center"&gt;&lt;span id="xdx_90F_eus-gaap--FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_dtY_c20220101__20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zzgRUk9aDHz3" title="Weighted Average Amortization Period (Years)"&gt;8.3&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zbWPPs3iriTa" style="width: 5%; text-align: right"&gt;787&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zVOCxmcBsH98" style="width: 5%; text-align: right" title="Accumulated Amortization"&gt;(354&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zSQPmcTKMaG5" style="width: 5%; text-align: right" title="Net Carrying Amount"&gt;433&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zxT8cwI26Gi4" style="width: 5%; text-align: right" title="Gross Carrying Amount"&gt;787&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zxUPgpBRNq1f" style="width: 5%; text-align: right" title="Accumulated Amortization"&gt;(351&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--PatentsMember_zw3uzOOV8eEl" style="width: 5%; text-align: right" title="Net Carrying Amount"&gt;436&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Software&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;span id="xdx_900_eus-gaap--FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_dtY_c20220101__20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zBCSR4wK2gJ" title="Weighted Average Amortization Period (Years)"&gt;3&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zoZ2Y5qWOT58" style="text-align: right" title="Gross Carrying Amount"&gt;606&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zVXeWd2DGLRj" style="text-align: right" title="Accumulated Amortization"&gt;(428&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zMQ084GyFwvj" style="text-align: right" title="Net Carrying Amount"&gt;178&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zrC4IWgXi7dc" style="text-align: right" title="Gross Carrying Amount"&gt;592&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zlWNOaA18DK" style="text-align: right" title="Accumulated Amortization"&gt;(415&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__custom--SoftwareMember_zkzCEhDOnRe3" style="text-align: right" title="Net Carrying Amount"&gt;177&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Customer relationships&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&lt;span id="xdx_90F_eus-gaap--FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1_dtY_c20220101__20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_zC3E92qGJbKj" title="Weighted Average Amortization Period (Years)"&gt;10&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_z5s7nXo5oY26" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross Carrying Amount"&gt;3,370&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_z3lXyqZVtQBh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Accumulated Amortization"&gt;(3,129&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_zqo0PluESwMh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net Carrying Amount"&gt;241&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_z2zedAExBUe7" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross Carrying Amount"&gt;3,370&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_zGIWeQ6r4oO3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Accumulated Amortization"&gt;(3,089&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231__us-gaap--FiniteLivedIntangibleAssetsByMajorClassAxis__us-gaap--CustomerRelationshipsMember_ziuQEqvkEKz9" style="border-bottom: Black 1.5pt solid; text-align: right" title="Net Carrying Amount"&gt;281&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20220331_zYfJk72FfGLk" style="border-bottom: Black 2.5pt double; text-align: right" title="Gross Carrying Amount"&gt;4,763&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20220331_z5wJDxBViWTe" style="border-bottom: Black 2.5pt double; text-align: right" title="Accumulated Amortization"&gt;(3,911&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20220331_zWCW1KOrHA8k" style="border-bottom: Black 2.5pt double; text-align: right" title="Net Carrying Amount"&gt;852&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FiniteLivedIntangibleAssetsGross_iI_pn3n3_c20211231_zbxjypEyd448" style="border-bottom: Black 2.5pt double; text-align: right" title="Gross Carrying Amount"&gt;4,749&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--FiniteLivedIntangibleAssetsAccumulatedAmortization_iI_pn3n3_c20211231_zOjRd8OSY1jd" style="border-bottom: Black 2.5pt double; text-align: right" title="Accumulated Amortization"&gt;(3,855&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--FiniteLivedIntangibleAssetsNet_iI_pn3n3_c20211231_zjJWjbsYVHCf" style="border-bottom: Black 2.5pt double; text-align: right" title="Net Carrying Amount"&gt;894&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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    <us-gaap:FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1 contextRef="From2022-01-012022-03-31_us-gaap_PatentsMember">P8Y3M18D</us-gaap:FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1>
    <us-gaap:FiniteLivedIntangibleAssetsGross
      contextRef="AsOf2022-03-31_us-gaap_PatentsMember"
      decimals="-3"
      unitRef="USD">787000</us-gaap:FiniteLivedIntangibleAssetsGross>
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      contextRef="AsOf2022-03-31_us-gaap_PatentsMember"
      decimals="-3"
      unitRef="USD">-354000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsNet
      contextRef="AsOf2022-03-31_us-gaap_PatentsMember"
      decimals="-3"
      unitRef="USD">433000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:FiniteLivedIntangibleAssetsGross
      contextRef="AsOf2021-12-31_us-gaap_PatentsMember"
      decimals="-3"
      unitRef="USD">787000</us-gaap:FiniteLivedIntangibleAssetsGross>
    <us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
      contextRef="AsOf2021-12-31_us-gaap_PatentsMember"
      decimals="-3"
      unitRef="USD">-351000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsNet
      contextRef="AsOf2021-12-31_us-gaap_PatentsMember"
      decimals="-3"
      unitRef="USD">436000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1 contextRef="From2022-01-012022-03-31_custom_SoftwareMember">P3Y</us-gaap:FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1>
    <us-gaap:FiniteLivedIntangibleAssetsGross
      contextRef="AsOf2022-03-31_custom_SoftwareMember"
      decimals="-3"
      unitRef="USD">606000</us-gaap:FiniteLivedIntangibleAssetsGross>
    <us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization
      contextRef="AsOf2022-03-31_custom_SoftwareMember"
      decimals="-3"
      unitRef="USD">-428000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsNet
      contextRef="AsOf2022-03-31_custom_SoftwareMember"
      decimals="-3"
      unitRef="USD">178000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:FiniteLivedIntangibleAssetsGross
      contextRef="AsOf2021-12-31_custom_SoftwareMember"
      decimals="-3"
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      contextRef="AsOf2021-12-31_custom_SoftwareMember"
      decimals="-3"
      unitRef="USD">-415000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsNet
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      decimals="-3"
      unitRef="USD">177000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1 contextRef="From2022-01-012022-03-31_us-gaap_CustomerRelationshipsMember">P10Y</us-gaap:FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1>
    <us-gaap:FiniteLivedIntangibleAssetsGross
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      decimals="-3"
      unitRef="USD">3370000</us-gaap:FiniteLivedIntangibleAssetsGross>
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      decimals="-3"
      unitRef="USD">-3129000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
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      decimals="-3"
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      decimals="-3"
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      decimals="-3"
      unitRef="USD">-3089000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
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      decimals="-3"
      unitRef="USD">281000</us-gaap:FiniteLivedIntangibleAssetsNet>
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    <us-gaap:FiniteLivedIntangibleAssetsGross contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">4749000</us-gaap:FiniteLivedIntangibleAssetsGross>
    <us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">-3855000</us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization>
    <us-gaap:FiniteLivedIntangibleAssetsNet contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">894000</us-gaap:FiniteLivedIntangibleAssetsNet>
    <us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_89D_eus-gaap--ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_z2NYcw3Aq5hi" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table summarizes the expected amortization over the next five years for our definite-lived intangible assets:&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span&gt;&lt;span id="xdx_8B6_ziA8jFzaPSgl" style="display: none"&gt;Schedule Of Finite Lived Intangible Assets, Future Amortization Expense&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 40%; margin-right: auto"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;Amount&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; font-weight: normal; font-style: normal"&gt;Year&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;(In thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="font-style: italic"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="text-align: center"&gt;&#160;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 70%; font-weight: normal; font-style: normal; text-align: left"&gt;2022 (Remaining)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 26%; text-align: right"&gt;164&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;2023&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;178&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;2024&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;46&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;2025&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;2026&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;


</us-gaap:ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock>
    <us-gaap:AmortizationOfIntangibleAssets
      contextRef="From2022-01-01to2022-03-31"
      decimals="0"
      unitRef="USD">56000</us-gaap:AmortizationOfIntangibleAssets>
    <us-gaap:AmortizationOfIntangibleAssets
      contextRef="From2021-01-012021-03-31"
      decimals="0"
      unitRef="USD">50000</us-gaap:AmortizationOfIntangibleAssets>
    <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_80E_eus-gaap--DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_zkV2e7LeVpub" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;6.
    &lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_82A_zToFqCtu8ow3"&gt;Capital
    Stock, Stock Plans, Warrants and Stock Based Compensation&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; background-color: white"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company has certain stock option plans under which it may award incentive stock options (&#x201c;ISOs&#x201d;) and/or non-qualified stock
options (&#x201c;NQSOs&#x201d;) to employees, officers, outside directors, and outside consultants. No stock options were granted in the
first quarter of 2022.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company granted a NQSO to Robert Ferguson on July 27, 2017 from the Company&#x2019;s 2017 Stock Option Plan (&#x201c;2017 Plan&#x201d;)
for the purchase of up to &lt;span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_c20170726__20170727__us-gaap--PlanNameAxis__custom--TwoThousandAndSeventeenStockOptionPlanMember__srt--TitleOfIndividualAxis__custom--ConsultantMember_z6aBKsJZtOY6" title="Number of stock option shares granted"&gt;100,000&lt;/span&gt; shares of the Company&#x2019;s Common Stock (&#x201c;Ferguson Stock Option&#x201d;) in connection with
his work as a consultant to the Company&#x2019;s Test Bed Initiative (&#x201c;TBI&#x201d;) at our Perma-Fix Northwest Richland, Inc. (&#x201c;PFNWR&#x201d;)
facility at an exercise price of $&lt;span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_c20170726__20170727__us-gaap--PlanNameAxis__custom--TwoThousandAndSeventeenStockOptionPlanMember__srt--TitleOfIndividualAxis__custom--ConsultantMember_zcaa1YwAEls2" title="Stock options, exercise price"&gt;3.65&lt;/span&gt; per share, which was the fair market value of the Company&#x2019;s Common Stock on the date of
grant. The term of the Ferguson Stock Option is seven years from the grant date. The vesting of the Ferguson Stock Option is subject
to the achievement of three separate milestones by certain dates. The first milestone was met and the shares under the first milestone
were issued to Robert Ferguson in May 2018. The Company had previously entered into amendments whereby the vesting dates for the second
and third milestones for the purchase of up to &lt;span id="xdx_90C_ecustom--OptionsToPurchaseSharesOfCommonStock_c20170726__20170727__us-gaap--AwardTypeAxis__custom--FergusonStockOptionMember__srt--StatementScenarioAxis__custom--SecondMilestoneMember_zkIQh9TQBHq1" title="Options to purchase shares"&gt;30,000&lt;/span&gt; and &lt;span id="xdx_90B_ecustom--OptionsToPurchaseSharesOfCommonStock_c20170726__20170727__us-gaap--AwardTypeAxis__custom--FergusonStockOptionMember__srt--StatementScenarioAxis__custom--ThirdMilestoneMember_zOdhCpDIfC96" title="Options to purchase shares"&gt;60,000&lt;/span&gt; shares of the Company&#x2019;s Common Stock were extended to December
31, 2021 and December 31, 2022, respectively. On January 20, 2022, the Company&#x2019;s Compensation and Stock Option Committee (&#x201c;Compensation
Committee&#x201d;) and the Board of Directors (&#x201c;Board&#x201d;) further amended the vesting dates of the second and third milestones
to December 31, 2022 and December 31, 2023, respectively. This amendment was approved by the Compensation Committee and the Board to
take effect December 31, 2021. The Company has not recognized compensation costs (fair value of approximately $&lt;span id="xdx_90A_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pp0p0_c20220331__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_z7UauCYaLGjb" title="Unrecognized compensation cost related to unvested options consultant"&gt;289,000&lt;/span&gt; at March 31, 2022)
for the remaining &lt;span id="xdx_904_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iI_c20220331__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zgDhwTJYlxIe" title="Remaining stock option"&gt;90,000&lt;/span&gt; Ferguson Stock Option under the remaining two milestones since achievement of the performance obligation under
each of the two remaining milestones is uncertain at March 31, 2022. All other terms of the Ferguson Stock Option remain unchanged.&lt;/span&gt;&lt;/p&gt;

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

&lt;p id="xdx_891_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_zZ7l8vP4X9Sk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table summarizes stock-based compensation recognized for the three months ended March 31, 2022 and 2021 for our employee
and director stock options.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B9_zf0Op0JaM8Va"&gt;Schedule of Share-based Compensation, Allocation of Recognized Period Costs&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_497_20220101__20220331_zciVlLv55sl9" style="text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;2022&lt;/span&gt;&lt;/td&gt;
    &lt;td colspan="4" id="xdx_49D_20210101__20210331_zBFDJTzAv4J8" style="text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;Stock Options&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_z0tTW1ZvRoP3" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Employee Stock Options&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;86,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;33,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__custom--DirectorStockOptionsMember_zJFq6BWwrHfl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Director Stock Options&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;16,000&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;12,000&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--ShareBasedCompensation_pp0p0_zPg7uLhKKIQi" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;102,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;45,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8AE_zfCaMfmB2Abg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;At
March 31, 2022, the Company has approximately $&lt;span id="xdx_907_eus-gaap--EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_iI_pp0p0_c20220331__srt--TitleOfIndividualAxis__custom--EmployeeAndDirectorsMember_zlS3zwkkX3J8" title="Unrecognized compensation cost related to unvested options consultant"&gt;1,287,000&lt;/span&gt; of total unrecognized compensation costs related to unvested options for employee
and directors. The weighted average period over which the unrecognized compensation costs are expected to be recognized is approximately
&lt;span id="xdx_909_ecustom--WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized_dtY_c20220101__20220331__srt--TitleOfIndividualAxis__custom--EmployeeAndDirectorsMember_zJlNcCUJM0Pf" title="Weighted average term for unrecognized and unvested option to be recognized"&gt;4.1&lt;/span&gt; years.&lt;/span&gt;&lt;/p&gt;

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




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

&lt;p id="xdx_899_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_zKMftzGNWgzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
summary of the Company&#x2019;s total Stock Option Plans as of March 31, 2022 and March 31, 2021, and changes during the periods then
ended, are presented below. The Company&#x2019;s Plans consist of the 2010 Stock Option Plan, the 2017 Plan and the 2003 Outside Directors
Stock Plan (&#x201c;2003 Plan&#x201d;):&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B3_zGexHXxMdvdc"&gt;Schedule of Stock Options Roll Forward&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center; font-size: 11pt"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Shares&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average&lt;/p&gt;
                                                                                 &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Exercise&lt;/p&gt;
                                               &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Price&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average Remaining Contractual Term&lt;/p&gt;
                                               &lt;p style="margin-top: 0; margin-bottom: 0"&gt;(years)&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Aggregate Intrinsic&lt;/span&gt;&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/span&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 36%"&gt;Options outstanding January 1, 2022&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zBnupvDi178k" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning"&gt;1,019,400&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zR57pyXxzDNe" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning"&gt;4.91&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zZ60FR03C1F3" style="width: 12%; font-size: 11pt; text-align: right"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0904"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Granted&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z85qphEsxjLe" style="text-align: right" title="Shares Options Granted"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0906"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z4rJ1nyeI8cg" style="text-align: right" title="Weighted Average Exercise Price Options Granted"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0908"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Exercised&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zCUT3hQvTB64" style="text-align: right" title="Shares Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0910"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zMLmIAoSNLl9" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0912"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_za7QRWDr63R6" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0914"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Forfeited/expired&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zrddeIfFX8d1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0916"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zmXYGPBN9Sk9" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0918"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span id="xdx_F47_zzZqb6Xy70v5" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zniXrCH4gYP" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending"&gt;1,019,400&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zP3LnAyLNWsj" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending"&gt;4.91&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zG1KnhiNbsDe" title="Weighted Average Remaining Contractual Term (years) Outstanding"&gt;3.8&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zzYqUU3jlLwb" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding"&gt;1,150,167&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options exercisable at March 31, 2022&lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zX6Qq4BvQii8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable"&gt;455,900&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zAUBqlIBm0la" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable"&gt;3.92&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zf3RRtALAk1i" title="Weighted Average Remaining Contractual Term (years) Exercisable"&gt;2.5&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zM17wIG7Kgsc" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable"&gt;779,362&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"/&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Shares&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Exercise&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Price&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average Remaining Contractual Term&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;(years)&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Aggregate Intrinsic&lt;/span&gt;&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/span&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 36%"&gt;Options outstanding January 1, 2021&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zWGv26fURg1f" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning"&gt;658,400&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z2FC3V42NRc4" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning"&gt;3.87&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zRBWgJCetet9" style="width: 12%; text-align: right"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0939"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Granted&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ziOX9Kw3sUtj" style="text-align: right" title="Shares Options Granted"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0941"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ztg22QbtJend" style="text-align: right" title="Weighted Average Exercise Price Options Granted"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0943"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Exercised&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zZbo50d8WBIe" style="text-align: right" title="Shares Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0945"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zLdtoRQa0E99" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0947"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_zPn71otZIo2i" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0949"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Forfeited/expired&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zr6wHFY4Vf21" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0951"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zh8lr243qXrj" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0953"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zd5LSNN9HwEg" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending"&gt;658,400&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zp09oDOyYLbc" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending"&gt;3.87&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zkYDXDP3dc4d" title="Weighted Average Remaining Contractual Term (years) Outstanding"&gt;3.2&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zjdRDneHpAn2" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding"&gt;2,279,267&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options exercisable at March 31, 2021&lt;sup&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zW7LVcINXNFb" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable"&gt;392,400&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zPq6nI7IYz9c" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable"&gt;4.08&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zKIrooMQsWzd" title="Weighted Average Remaining Contractual Term (years) Exercisable"&gt;3.4&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zMjYIuwYyA3f" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable"&gt;1,274,287&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"/&gt;&lt;/p&gt;

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

&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F08_z9QYmHIkyEoa"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span id="xdx_F14_zLu3Zn4pXAJ9" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options with exercise prices ranging from $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zHT1zo76Muk9"&gt;2.79&lt;/span&gt; to $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zU4ULxF2fla8"&gt;7.50&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F04_zUaGm5wINbog"&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1B_zWiupfNXaw8d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options with exercise prices ranging from $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zeAzSUEIt1l8"&gt;2.79&lt;/span&gt; to $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zZx5cRh1uPv6"&gt;7.29&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F08_zKi1SVHksv6"&gt;(3)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span id="xdx_F14_zZcG4PzUoJda" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The intrinsic value of a stock option is the amount by which
the market value of the underlying stock exceeds the exercise price of the option.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;p id="xdx_8A6_zkh3HXG0nIqj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;During
the three months ended March 31, 2022, the Company issued a total of &lt;span id="xdx_90B_eus-gaap--StockIssuedDuringPeriodSharesIssuedForServices_c20220101__20220331__us-gaap--PlanNameAxis__custom--TwoThousandThreeOutsideDirectorsStockOptionPlanMember__us-gaap--StatementClassOfStockAxis__us-gaap--CommonStockMember_zCiCKQFQ7fg5"&gt;19,520&lt;/span&gt; shares of its Common Stock under the 2003 Plan to its outside
directors as compensation for serving on our Board. The Company recorded approximately $&lt;span id="xdx_904_eus-gaap--AllocatedShareBasedCompensationExpense_c20220101__20220331__us-gaap--PlanNameAxis__custom--TwoThousandTwentyManagementIncentivePlanMember_zlvSOghMO611" title="Allocated share-based compensation expense"&gt;120,000&lt;/span&gt; in compensation expenses (included in
selling, general and administration (&#x201c;SG&amp;amp;A&#x201d;) expenses) in connection with the issuance of shares of its Common Stock
to outside directors.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
connection with a $&lt;span id="xdx_902_eus-gaap--LoansPayable_iI_pp0p0_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zFx0JShNSoX2" title="Loans payable"&gt;2,500,000&lt;/span&gt; loan that the Company entered into with Mr. Robert Ferguson (the &#x201c;Ferguson Loan&#x201d;) on April 1,
2019, the Company issued a warrant to Mr. Ferguson for the purchase of up to &lt;span id="xdx_900_eus-gaap--ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_iI_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zGqlLhAypxTf" title="Warrant to purchase"&gt;60,000&lt;/span&gt; shares of our Common Stock at an exercise price of
$&lt;span id="xdx_909_eus-gaap--ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_iI_c20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zy67Z6hXydyj" title="Warrants exercise price"&gt;3.51&lt;/span&gt; per share. &lt;span id="xdx_90C_ecustom--WarrantExercisableDescription_c20190330__20190402__srt--TitleOfIndividualAxis__custom--RobertFergusonMember_zqfD5INx1Fk4" title="Warrant exercisable, description"&gt;The warrant expires on April 1, 2024 and remains outstanding at March 31, 2022. The Ferguson Loan was paid-in-full in
December 2020.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

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




</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
      contextRef="From2017-07-262017-07-27_custom_TwoThousandAndSeventeenStockOptionPlanMember_custom_ConsultantMember"
      decimals="INF"
      unitRef="Shares">100000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross>
    <us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
      contextRef="From2017-07-262017-07-27_custom_TwoThousandAndSeventeenStockOptionPlanMember_custom_ConsultantMember"
      decimals="INF"
      unitRef="USDPShares">3.65</us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice>
    <PESI:OptionsToPurchaseSharesOfCommonStock
      contextRef="From2017-07-262017-07-27_custom_FergusonStockOptionMember_custom_SecondMilestoneMember"
      decimals="INF"
      unitRef="Shares">30000</PESI:OptionsToPurchaseSharesOfCommonStock>
    <PESI:OptionsToPurchaseSharesOfCommonStock
      contextRef="From2017-07-262017-07-27_custom_FergusonStockOptionMember_custom_ThirdMilestoneMember"
      decimals="INF"
      unitRef="Shares">60000</PESI:OptionsToPurchaseSharesOfCommonStock>
    <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
      contextRef="AsOf2022-03-31_custom_RobertFergusonMember"
      decimals="0"
      unitRef="USD">289000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized>
    <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
      contextRef="AsOf2022-03-31_custom_RobertFergusonMember"
      decimals="INF"
      unitRef="Shares">90000</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber>
    <us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_891_eus-gaap--ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock_zZ7l8vP4X9Sk" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table summarizes stock-based compensation recognized for the three months ended March 31, 2022 and 2021 for our employee
and director stock options.&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B9_zf0Op0JaM8Va"&gt;Schedule of Share-based Compensation, Allocation of Recognized Period Costs&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 60%; margin-right: auto"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_497_20220101__20220331_zciVlLv55sl9" style="text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;2022&lt;/span&gt;&lt;/td&gt;
    &lt;td colspan="4" id="xdx_49D_20210101__20210331_zBFDJTzAv4J8" style="text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;Stock Options&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_z0tTW1ZvRoP3" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Employee Stock Options&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;86,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;33,000&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--ShareBasedCompensation_pp0p0_hus-gaap--AwardTypeAxis__custom--DirectorStockOptionsMember_zJFq6BWwrHfl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 1.5pt"&gt;Director Stock Options&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;16,000&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;12,000&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--ShareBasedCompensation_pp0p0_zPg7uLhKKIQi" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Total&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;102,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;45,000&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock>
    <us-gaap:ShareBasedCompensation
      contextRef="From2022-01-012022-03-31_us-gaap_EmployeeStockOptionMember"
      decimals="0"
      unitRef="USD">86000</us-gaap:ShareBasedCompensation>
    <us-gaap:ShareBasedCompensation
      contextRef="From2021-01-012021-03-31_us-gaap_EmployeeStockOptionMember"
      decimals="0"
      unitRef="USD">33000</us-gaap:ShareBasedCompensation>
    <us-gaap:ShareBasedCompensation
      contextRef="From2022-01-012022-03-31_custom_DirectorStockOptionsMember"
      decimals="0"
      unitRef="USD">16000</us-gaap:ShareBasedCompensation>
    <us-gaap:ShareBasedCompensation
      contextRef="From2021-01-012021-03-31_custom_DirectorStockOptionsMember"
      decimals="0"
      unitRef="USD">12000</us-gaap:ShareBasedCompensation>
    <us-gaap:ShareBasedCompensation
      contextRef="From2022-01-01to2022-03-31"
      decimals="0"
      unitRef="USD">102000</us-gaap:ShareBasedCompensation>
    <us-gaap:ShareBasedCompensation
      contextRef="From2021-01-012021-03-31"
      decimals="0"
      unitRef="USD">45000</us-gaap:ShareBasedCompensation>
    <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
      contextRef="AsOf2022-03-31_custom_EmployeeAndDirectorsMember"
      decimals="0"
      unitRef="USD">1287000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized>
    <PESI:WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized contextRef="From2022-01-012022-03-31_custom_EmployeeAndDirectorsMember">P4Y1M6D</PESI:WeightedAverageTermForUnrecognizedAndUnvestedOptionToBeRecognized>
    <us-gaap:ScheduleOfStockOptionsRollForwardTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_899_eus-gaap--ScheduleOfStockOptionsRollForwardTableTextBlock_zKMftzGNWgzl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
summary of the Company&#x2019;s total Stock Option Plans as of March 31, 2022 and March 31, 2021, and changes during the periods then
ended, are presented below. The Company&#x2019;s Plans consist of the 2010 Stock Option Plan, the 2017 Plan and the 2003 Outside Directors
Stock Plan (&#x201c;2003 Plan&#x201d;):&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B3_zGexHXxMdvdc"&gt;Schedule of Stock Options Roll Forward&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center; font-size: 11pt"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Shares&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average&lt;/p&gt;
                                                                                 &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Exercise&lt;/p&gt;
                                               &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Price&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average Remaining Contractual Term&lt;/p&gt;
                                               &lt;p style="margin-top: 0; margin-bottom: 0"&gt;(years)&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Aggregate Intrinsic&lt;/span&gt;&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/span&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 36%"&gt;Options outstanding January 1, 2022&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zBnupvDi178k" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning"&gt;1,019,400&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zR57pyXxzDNe" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning"&gt;4.91&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%; font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zZ60FR03C1F3" style="width: 12%; font-size: 11pt; text-align: right"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0904"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Granted&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z85qphEsxjLe" style="text-align: right" title="Shares Options Granted"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0906"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z4rJ1nyeI8cg" style="text-align: right" title="Weighted Average Exercise Price Options Granted"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0908"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Exercised&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zCUT3hQvTB64" style="text-align: right" title="Shares Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0910"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zMLmIAoSNLl9" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0912"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_za7QRWDr63R6" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0914"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Forfeited/expired&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_iN_pid_di_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zrddeIfFX8d1" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0916"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zmXYGPBN9Sk9" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"&gt; &lt;span style="-sec-ix-hidden: xdx2ixbrl0918"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="font-size: 11pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span id="xdx_F47_zzZqb6Xy70v5" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zniXrCH4gYP" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending"&gt;1,019,400&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zP3LnAyLNWsj" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending"&gt;4.91&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zG1KnhiNbsDe" title="Weighted Average Remaining Contractual Term (years) Outstanding"&gt;3.8&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zzYqUU3jlLwb" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding"&gt;1,150,167&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options exercisable at March 31, 2022&lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zX6Qq4BvQii8" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable"&gt;455,900&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iE_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zAUBqlIBm0la" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable"&gt;3.92&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zf3RRtALAk1i" title="Weighted Average Remaining Contractual Term (years) Exercisable"&gt;2.5&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20220101__20220331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zM17wIG7Kgsc" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable"&gt;779,362&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"/&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Shares&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Exercise&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;Price&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;Weighted Average Remaining Contractual Term&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;(years)&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Aggregate Intrinsic&lt;/span&gt;&lt;/p&gt;
                                                                                &lt;p style="margin-top: 0; margin-bottom: 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Value &lt;sup&gt;(3)&lt;/sup&gt;&lt;/span&gt;&lt;/p&gt;&lt;/td&gt;&lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 36%"&gt;Options outstanding January 1, 2021&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zWGv26fURg1f" style="width: 12%; text-align: right" title="Shares Options Outstanding Beginning"&gt;658,400&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_z2FC3V42NRc4" style="width: 12%; text-align: right" title="Weighted Average Exercise Price Options Outstanding Beginning"&gt;3.87&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 12%; text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iS_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zRBWgJCetet9" style="width: 12%; text-align: right"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0939"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Granted&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ziOX9Kw3sUtj" style="text-align: right" title="Shares Options Granted"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0941"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_ztg22QbtJend" style="text-align: right" title="Weighted Average Exercise Price Options Granted"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0943"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Exercised&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zZbo50d8WBIe" style="text-align: right" title="Shares Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0945"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zLdtoRQa0E99" style="text-align: right" title="Weighted Average Exercise Price Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0947"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDQp_zPn71otZIo2i" style="text-align: right" title="Aggregate Intrinsic Value Options Exercised"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0949"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Forfeited/expired&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zr6wHFY4Vf21" style="border-bottom: Black 1.5pt solid; text-align: right" title="Shares Options Forfeited/expired"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0951"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_zh8lr243qXrj" style="text-align: right" title="Weighted Average Exercise Price Options Forfeited/expired"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0953"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options outstanding end of period &lt;sup&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zd5LSNN9HwEg" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Outstanding Ending"&gt;658,400&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pid_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zp09oDOyYLbc" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Outstanding Ending"&gt;3.87&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zkYDXDP3dc4d" title="Weighted Average Remaining Contractual Term (years) Outstanding"&gt;3.2&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zjdRDneHpAn2" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Outstanding"&gt;2,279,267&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options exercisable at March 31, 2021&lt;sup&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"/&gt;&lt;td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zW7LVcINXNFb" style="border-bottom: Black 2.5pt double; text-align: right" title="Shares Options Exercisable"&gt;392,400&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_iI_pid_c20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zPq6nI7IYz9c" style="padding-bottom: 2.5pt; text-align: right" title="Weighted Average Exercise Price Options Exercisable"&gt;4.08&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: right"&gt;&lt;span id="xdx_904_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_dtY_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDEp_zKIrooMQsWzd" title="Weighted Average Remaining Contractual Term (years) Exercisable"&gt;3.4&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_iE_pp0p0_c20210101__20210331__us-gaap--FinancialInstrumentAxis__us-gaap--StockOptionMember_fKDMpKDEp_zMjYIuwYyA3f" style="padding-bottom: 2.5pt; text-align: right" title="Aggregate Intrinsic Value Options Exercisable"&gt;1,274,287&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"/&gt;&lt;/p&gt;

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

&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F08_z9QYmHIkyEoa"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span id="xdx_F14_zLu3Zn4pXAJ9" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options with exercise prices ranging from $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zHT1zo76Muk9"&gt;2.79&lt;/span&gt; to $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionOutstandingMember_zU4ULxF2fla8"&gt;7.50&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F04_zUaGm5wINbog"&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1B_zWiupfNXaw8d" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Options with exercise prices ranging from $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zeAzSUEIt1l8"&gt;2.79&lt;/span&gt; to $&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIFN0b2NrIE9wdGlvbnMgUm9sbCBGb3J3YXJkIChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_pid_c20220101__20220331__us-gaap--FinancialInstrumentAxis__custom--StockOptionExercisableMember_zZx5cRh1uPv6"&gt;7.29&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F08_zKi1SVHksv6"&gt;(3)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span id="xdx_F14_zZcG4PzUoJda" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The intrinsic value of a stock option is the amount by which
the market value of the underlying stock exceeds the exercise price of the option.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


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      contextRef="AsOf2022-03-31_us-gaap_StockOptionMember"
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      unitRef="USDPShares">3.92</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice>
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      contextRef="AsOf2022-03-31_us-gaap_StockOptionMember"
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      contextRef="AsOf2020-12-31_us-gaap_StockOptionMember"
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      contextRef="AsOf2020-12-31_us-gaap_StockOptionMember"
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    <us-gaap:EarningsPerShareTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_805_eus-gaap--EarningsPerShareTextBlock_zHtDIJXxWORc" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;7.
&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span&gt;&lt;span id="xdx_82D_zbA3cD1m6ZN4"&gt;Loss
    Per Share&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_z3a0tq9Via4a" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Basic
loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted
loss per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding
common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive loss earnings per
shares. The following table reconciles the loss and average share amounts used to compute both basic and diluted loss per share:&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B2_zUu3VX1Zftui"&gt;Schedule
of Earning Per Share&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_494_20220101__20220331_z9XW2FPy9Ct" style="text-align: center"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif"&gt;2022&lt;/span&gt;&lt;/td&gt;
    &lt;td colspan="4" id="xdx_499_20210101__20210331_zNGQEmDd0se1" style="text-align: center"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;(Unaudited)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(Amounts in Thousands, Except for Per Share Amounts)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_408_eus-gaap--IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_iB_zA2f4RgJfP59" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Net loss attributable to Perma-Fix Environmental Services, Inc., common stockholders:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_maILFCOzCoE_z1T8Hyg5xwPh" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; width: 60%; text-align: left"&gt;Loss from continuing operations, net of taxes&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;(1,249&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;(1,038&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_408_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_msILFCOzCoE_zgSbAc9DRjA3" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Net loss attributable to non-controlling interest&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0999"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;(30&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_409_eus-gaap--IncomeLossFromContinuingOperations_iT_pn3n3_mtILFCOzCoE_maNILzERM_zsqyk8WbRl42" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Loss from continuing operations attributable to Perma-Fix Environmental Services,
    Inc. common stockholders&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;(1,249&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;(1,008&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_pn3n3_maNILzERM_zv1xxEcH1Yal" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Loss from discontinuing operations attributable to Perma-Fix
    Environmental Services, Inc. common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;(94&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;(115&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--NetIncomeLoss_iT_pn3n3_mtNILzERM_z5cDW40df6gb" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt"&gt;Net loss attributable to Perma-Fix Environmental Services,
    Inc. common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(1,343&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(1,123&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-decoration: underline"/&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_402_eus-gaap--EarningsPerShareBasic_pid_zz8W27EWaNae" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.09&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-decoration: underline"/&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_401_eus-gaap--EarningsPerShareDiluted_pid_zuqYxYIflzh2" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Diluted loss per share attributable to Perma-Fix Environmental Services, Inc.
    common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.09&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-decoration: underline"&gt;&lt;span style="text-decoration: underline"/&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasicAbstract_iB_zFNq734jZ7Ge" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Weighted average shares outstanding:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_405_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasic_pid_zxpt3LHpbEjc" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Basic weighted average shares outstanding&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;13,234&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;12,165&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_pid_zQnYZ75Kpmbl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Add: dilutive effect of stock options&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1023"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1024"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_zf6twMdGVhQ" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Add: dilutive effect of warrants&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1026"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1027"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40D_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_pid_zGH3C5nisuX2" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Diluted weighted average shares outstanding&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;13,234&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;12,165&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Potential shares excluded from above weighted average share calculations due to their anti-dilutive
    effect include:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40B_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pid_z3L0kgKZrer2" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Stock options&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;405&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;30&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_ecustom--AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_pid_zMi75wAy4qTd" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Warrant&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1035"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1036"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p id="xdx_8A5_zBY534dDccO2" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

</us-gaap:EarningsPerShareTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_89F_eus-gaap--ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_z3a0tq9Via4a" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Basic
loss per share is calculated based on the weighted-average number of outstanding common shares during the applicable period. Diluted
loss per share is based on the weighted-average number of outstanding common shares plus the weighted-average number of potential outstanding
common shares. In periods where they are anti-dilutive, such amounts are excluded from the calculations of dilutive loss earnings per
shares. The following table reconciles the loss and average share amounts used to compute both basic and diluted loss per share:&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B2_zUu3VX1Zftui"&gt;Schedule
of Earning Per Share&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="display: none; vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: center"&gt;&#160;&lt;/td&gt;
    &lt;td id="xdx_494_20220101__20220331_z9XW2FPy9Ct" style="text-align: center"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif"&gt;2022&lt;/span&gt;&lt;/td&gt;
    &lt;td colspan="4" id="xdx_499_20210101__20210331_zNGQEmDd0se1" style="text-align: center"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="text-align: center"&gt;Three Months Ended&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;(Unaudited)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="6" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31,&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(Amounts in Thousands, Except for Per Share Amounts)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_408_eus-gaap--IncomeAmountsAttributableToReportingEntityDisclosuresAbstract_iB_zA2f4RgJfP59" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Net loss attributable to Perma-Fix Environmental Services, Inc., common stockholders:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_maILFCOzCoE_z1T8Hyg5xwPh" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; width: 60%; text-align: left"&gt;Loss from continuing operations, net of taxes&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;(1,249&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="width: 16%; text-align: right"&gt;(1,038&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_408_eus-gaap--NetIncomeLossAttributableToNoncontrollingInterest_pn3n3_msILFCOzCoE_zgSbAc9DRjA3" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Net loss attributable to non-controlling interest&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl0999"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;(30&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_409_eus-gaap--IncomeLossFromContinuingOperations_iT_pn3n3_mtILFCOzCoE_maNILzERM_zsqyk8WbRl42" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Loss from continuing operations attributable to Perma-Fix Environmental Services,
    Inc. common stockholders&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;(1,249&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;(1,008&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_407_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_pn3n3_maNILzERM_zv1xxEcH1Yal" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Loss from discontinuing operations attributable to Perma-Fix
    Environmental Services, Inc. common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;(94&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;(115&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--NetIncomeLoss_iT_pn3n3_mtNILzERM_z5cDW40df6gb" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 2.5pt"&gt;Net loss attributable to Perma-Fix Environmental Services,
    Inc. common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(1,343&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(1,123&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-decoration: underline"/&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_402_eus-gaap--EarningsPerShareBasic_pid_zz8W27EWaNae" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.09&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-decoration: underline"/&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_401_eus-gaap--EarningsPerShareDiluted_pid_zuqYxYIflzh2" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left; padding-bottom: 2.5pt"&gt;Diluted loss per share attributable to Perma-Fix Environmental Services, Inc.
    common stockholders&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.10&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;(.09&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-decoration: underline"&gt;&lt;span style="text-decoration: underline"/&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasicAbstract_iB_zFNq734jZ7Ge" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Weighted average shares outstanding:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_405_eus-gaap--WeightedAverageNumberOfSharesOutstandingBasic_pid_zxpt3LHpbEjc" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;Basic weighted average shares outstanding&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;13,234&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;12,165&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_pid_zQnYZ75Kpmbl" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Add: dilutive effect of stock options&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1023"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1024"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--IncrementalCommonSharesAttributableToCallOptionsAndWarrants_pid_zf6twMdGVhQ" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left; padding-bottom: 1.5pt"&gt;Add: dilutive effect of warrants&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1026"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1027"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40D_eus-gaap--WeightedAverageNumberOfDilutedSharesOutstanding_pid_zGH3C5nisuX2" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt"&gt;Diluted weighted average shares outstanding&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;13,234&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;12,165&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Potential shares excluded from above weighted average share calculations due to their anti-dilutive
    effect include:&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40B_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_pid_z3L0kgKZrer2" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Stock options&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;405&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;30&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_ecustom--AntidilutiveSecuritiesOfWarrantsExcludedFromComputationOfEarningsPerShareAmount_pid_zMi75wAy4qTd" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td&gt;Warrant&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1035"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1036"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
    <us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">-1249000</us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest>
    <us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">-1038000</us-gaap:IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest>
    <us-gaap:NetIncomeLossAttributableToNoncontrollingInterest
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">-30000</us-gaap:NetIncomeLossAttributableToNoncontrollingInterest>
    <us-gaap:IncomeLossFromContinuingOperations
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">-1249000</us-gaap:IncomeLossFromContinuingOperations>
    <us-gaap:IncomeLossFromContinuingOperations
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">-1008000</us-gaap:IncomeLossFromContinuingOperations>
    <us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">-94000</us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity>
    <us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">-115000</us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity>
    <us-gaap:NetIncomeLoss
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">-1343000</us-gaap:NetIncomeLoss>
    <us-gaap:NetIncomeLoss
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">-1123000</us-gaap:NetIncomeLoss>
    <us-gaap:EarningsPerShareBasic
      contextRef="From2022-01-01to2022-03-31"
      decimals="INF"
      unitRef="USDPShares">-0.10</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareBasic
      contextRef="From2021-01-012021-03-31"
      decimals="INF"
      unitRef="USDPShares">-0.09</us-gaap:EarningsPerShareBasic>
    <us-gaap:EarningsPerShareDiluted
      contextRef="From2022-01-01to2022-03-31"
      decimals="INF"
      unitRef="USDPShares">-0.10</us-gaap:EarningsPerShareDiluted>
    <us-gaap:EarningsPerShareDiluted
      contextRef="From2021-01-012021-03-31"
      decimals="INF"
      unitRef="USDPShares">-0.09</us-gaap:EarningsPerShareDiluted>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
      contextRef="From2022-01-01to2022-03-31"
      decimals="INF"
      unitRef="Shares">13234</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
      contextRef="From2021-01-012021-03-31"
      decimals="INF"
      unitRef="Shares">12165</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
      contextRef="From2022-01-01to2022-03-31"
      decimals="INF"
      unitRef="Shares">13234</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding
      contextRef="From2021-01-012021-03-31"
      decimals="INF"
      unitRef="Shares">12165</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="From2022-01-01to2022-03-31"
      decimals="INF"
      unitRef="Shares">405</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
      contextRef="From2021-01-012021-03-31"
      decimals="INF"
      unitRef="Shares">30</us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount>
    <us-gaap:LongTermDebtTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_800_eus-gaap--LongTermDebtTextBlock_zNLGzpxTckfh" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;8.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_828_zEIqHQNgHQ26"&gt;Long
    Term Debt&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p id="xdx_89A_eus-gaap--ScheduleOfDebtInstrumentsTextBlock_zfiFJSy0V146" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Long-term
debt consists of the following:&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B7_zj5sDZULO0x4"&gt;Schedule of Long Term Debt&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(Amounts in Thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;December 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Revolving Credit&lt;/b&gt; facility
    dated May 8, 2020, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due
    on &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_z5J55u5m5Nqb" title="Debt due date"&gt;May 15, 2024&lt;/span&gt;. Effective interest rate for first quarter of 2022 was &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220331__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_zJXS2qyQ8Zp3" title="Effective interest rate"&gt;0&lt;/span&gt;%. &lt;sup&gt;(1) &lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zIL66X3BRTy7" style="text-align: right" title="Total debt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1046"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--LongTermDebt_iI_pn3n3_c20211231__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zdXkub4NdCZ2" style="text-align: right" title="Total debt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1048"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b id="xdx_F43_ztplLFkxIjYj"&gt;Term Loan&lt;/b&gt; dated May
    8, 2020, payable in equal monthly installments of principal, balance due on &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90B_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--TermLoanMember_z7Okh9VXQeF2" title="Debt due date"&gt;May 15, 2024&lt;/span&gt;. Effective interest rate for the first quarter
    of 2022 was &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90E_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220331__us-gaap--TypeOfArrangementAxis__custom--TermLoanMember_zBzF5yVCT21j" title="Effective interest rate"&gt;4.3&lt;/span&gt;%. &lt;sup&gt;(1) &lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_fKDEpKDIp_zxEooRqJKZ1g" style="text-align: right"&gt;840 &lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--LongTermDebt_iI_pn3n3_c20211231__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_fKDEpKDIp_zgMSYZRy37Ni" style="text-align: right" title="Total debt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;954 &lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-style: normal; width: 60%; font-weight: normal; text-align: left"&gt;&lt;b&gt;Notes Payable&lt;/b&gt; to 2023 and 2025, annual interest
    rate of &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_903_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_c20220331__us-gaap--LongtermDebtTypeAxis__custom--NotePayableOneMember_zin336gIczE5" title="Effective interest rate"&gt;5.6&lt;/span&gt;% and &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90F_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_c20220331__us-gaap--LongtermDebtTypeAxis__custom--NotePayableTwoMember_z7EaB4bVPGF2" title="Effective interest rate"&gt;9.1&lt;/span&gt;%.&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--NotePayableMember_zCak8iGFR6r5" style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;35&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--LongTermDebt_c20211231__us-gaap--LongtermDebtTypeAxis__custom--NotePayableMember_pn3n3" style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right" title="Total debt"&gt;39&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Total debt&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--LongTermDebt_iI_pn3n3_c20220331_zoTsy8dx0Odk" style="text-align: right"&gt;875&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--LongTermDebt_c20211231_pn3n3" style="text-align: right" title="Total debt"&gt;993&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Less current portion of long-term debt&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--LongTermDebtCurrent_iI_pn3n3_c20220331_z9enqWHAIGb" style="border-bottom: Black 1.5pt solid; text-align: right"&gt;384&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--LongTermDebtCurrent_iI_pn3n3_c20211231_zLxhKuEbnzh5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less current portion of long-term debt"&gt;393&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;Long-term debt&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20220331_z2KKoFWSB3Xf" style="border-bottom: Black 2.5pt double; text-align: right"&gt;491&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20211231_zZqBUVq33Qv4" style="border-bottom: Black 2.5pt double; text-align: right" title="Long-term debt"&gt;600&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -31.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td id="xdx_F02_zesljS6BxGE9" style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1C_zF2e3Et7L9F6" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F09_zVqwt9WDf1z3"&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F10_zzrb1I02XJtd" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Net of debt issuance
costs of ($&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1"&gt;120,000&lt;/span&gt;) and ($&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4"&gt;112,000&lt;/span&gt;) at March 31, 2022 and December 31, 2021, respectively.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

&lt;p id="xdx_8AC_zVcKSjdwM32g" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"&gt;&#160;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Revolving
Credit and Term Loan Agreement&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 13.5pt; text-align: justify; text-indent: -13.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company entered into a Second Amended and Restated Revolving Credit, Term Loan and Security Agreement, dated May 8, 2020 (&#x201c;Loan
Agreement&#x201d;), with PNC National Association (&#x201c;PNC&#x201d;), acting as agent and lender. The Loan Agreement provides the Company
with the following credit facility with a maturity date of &lt;span id="xdx_903_eus-gaap--DebtInstrumentMaturityDate_dd_c20200506__20200508__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember_zD9mbATferLl" title="Debt instrument maturity date"&gt;March 15, 2024&lt;/span&gt;: (a) up to $&lt;span id="xdx_90A_eus-gaap--LineOfCreditFacilityMaximumBorrowingCapacity_c20200508__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember_pp0p0" title="Line of credit facility, maximum borrowing capacity"&gt;18,000,000&lt;/span&gt; revolving credit (&#x201c;revolving credit&#x201d;)
and (b) a term loan (&#x201c;term loan&#x201d;) of approximately $&lt;span id="xdx_900_eus-gaap--LongTermDebt_c20200508__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_pp0p0" title="Total debt"&gt;1,742,000&lt;/span&gt;, requiring monthly installments of $&lt;span id="xdx_90C_eus-gaap--DebtInstrumentPeriodicPayment_c20200506__20200508__us-gaap--DebtInstrumentAxis__custom--RevisedLoanAgreementMember__dei--LegalEntityAxis__custom--PNCBankMember__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_pp0p0" title="Debt instrument periodic payment"&gt;35,547&lt;/span&gt;. The maximum that
the Company can borrow under the revolving credit is based on a percentage of eligible receivables (as defined) at any one time reduced
by outstanding standby letters of credit and borrowing reductions that our lender may impose from time to time. The Loan Agreement, as
amended, also provides a capital expenditure line of up to $&lt;span id="xdx_904_eus-gaap--LineOfCreditFacilityCurrentBorrowingCapacity_c20210504_pp0p0" title="Debt instrument, borrowing capacity, amount"&gt;1,000,000&lt;/span&gt; with advances on the line, subject to certain limitations, permitted
for up to twelve months starting May 4, 2021 (the &#x201c;Borrowing Period&#x201d;). Only interest is payable on advances during the Borrowing
Period. At the end of the Borrowing Period, the total amount advanced under the line will amortize equally based on a five-year amortization
schedule with principal payment due monthly plus interest. At the maturity date of the Loan Agreement, as amended, any unpaid principal
balance plus interest, if any, will become due. No advance on the capital line has been made as of March 31, 2022.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
March 29, 2022, the Company entered into an amendment to its Loan Agreement with its lender which provided, among other things, the following:&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="width: 0.25in"&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cf;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;waived
    the Company&#x2019;s failure to meet the minimum quarterly fixed charge coverage ratio (&#x201c;FCCR&#x201d;) requirement for the fourth
    quarter of 2021;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cf;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;removes
    the quarterly FCCR testing requirement for the first quarter of 2022;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cf;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;reinstates
    the quarterly FCCR testing requirement starting for the second quarter of 2022 and revises the methodology to be used in calculating
    the FCCR for the quarters ending June 30, 2022, September 30, 2022, and December 31, 2022 (with no change to the minimum 1.15:1 ratio
    requirement for each quarter);&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cf;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_908_eus-gaap--LineOfCreditFacilityBorrowingCapacityDescription_c20220101__20220331_zyvtAMMw9rEg" title="Line of credit facility, borrowing capacity, description"&gt;requires
    maintenance of a minimum of $3,000,000 in borrowing availability under the revolving credit until the minimum FCCR requirement for
    the quarter ended June 30, 2022 has been met and certified to the lender; and&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cf;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;revises
    the annual rate used to calculate the Facility Fee (as defined in the Loan Agreement) on the revolving credit, with addition of the
    capital expenditure line, from &lt;span id="xdx_902_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329__srt--RangeAxis__srt--MinimumMember_zrpHNtv2XoEg" title="Percentage of unused line fees"&gt;0.375&lt;/span&gt;% to &lt;span id="xdx_908_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329__srt--RangeAxis__srt--MaximumMember_z46SMOa2ee24" title="Percentage of unused line fees"&gt;0.500&lt;/span&gt;%. Upon meeting the minimum FCCR requirement of 1.15:1 on a twelve months trailing
    basis, the Facility Fee rate of &lt;span id="xdx_902_eus-gaap--LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_pid_dp_uPure_c20220327__20220329_zCRjNLGKYC9k" title="Percentage of unused line fees"&gt;0.375&lt;/span&gt;% will be reinstated.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
connection with the amendment, we paid PNC a fee of $&lt;span id="xdx_909_eus-gaap--DebtInstrumentFeeAmount_iI_c20220329__srt--TitleOfIndividualAxis__custom--LenderMember_zNQOK9iV5iBk"&gt;15,000&lt;/span&gt; which is being amortized over the remaining term of the Loan Agreement, as
amended, as interest expense-financing fees.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Pursuant
to the Loan Agreement, as amended, payment of annual rate of interest due on the revolving credit is at prime (&lt;span id="xdx_905_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--VariableRateAxis__us-gaap--PrimeRateMember_zSCaCKavRQ8b" title="Percentage of basis spread on variable rate"&gt;3.50&lt;/span&gt;% at March 31, 2022)
plus &lt;span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zFZb9ugQNds1" title="Percentage of basis spread on variable rate"&gt;2&lt;/span&gt;% or LIBOR plus &lt;span id="xdx_90A_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_ziJsUke3RNpg" title="Percentage of basis spread on variable rate"&gt;3.00&lt;/span&gt;% and the term loan and the capital expenditure line at prime plus &lt;span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--DebtInstrumentAxis__custom--CapitalExpenditureMember__us-gaap--VariableRateAxis__us-gaap--PrimeRateMember_zlLTxCmIhdX8" title="Percentage of basis spread on variable rate"&gt;2.50&lt;/span&gt;% or LIBOR plus &lt;span id="xdx_90F_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--TypeOfArrangementAxis__custom--LoanAgreementMember__us-gaap--DebtInstrumentAxis__custom--CapitalExpenditureMember__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zaWN3Dr34mAb" title="Percentage of basis spread on variable rate"&gt;3.50&lt;/span&gt;%. Under the LIBOR
option of interest payment, a LIBOR floor of &lt;span id="xdx_908_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_pid_dp_uPure_c20220101__20220331__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zunAaYBYob9d" title="Percentage of basis spread on variable rate"&gt;0.75&lt;/span&gt;% applies in the event that LIBOR falls below &lt;span id="xdx_908_eus-gaap--DebtInstrumentBasisSpreadOnVariableRate1_dp_uPure_c20220101__20220331__us-gaap--VariableRateAxis__us-gaap--LondonInterbankOfferedRateLIBORMember_zpqKp6eHZFF8" title="Percentage of basis spread on variable rate"&gt;0.75&lt;/span&gt;% at any point in time.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company may terminate its Loan Agreement, as amended, upon 90 days&#x2019; prior written notice upon payment in full of our obligations
under the Loan Agreement. The Company has agreed to pay PNC 0.5% of the total financing if it pays off its obligations after May 7, 2021
but prior to or on May 7, 2022. No early termination fee will apply if the Company pays off its obligations under the Loan Agreement
after May 7, 2022.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;At
March 31, 2022, the borrowing availability under the Company&#x2019;s revolving credit was approximately $&lt;span id="xdx_903_eus-gaap--LineOfCreditFacilityRemainingBorrowingCapacity_iI_pp0p0_c20220331__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zdIepKdrqFdk" title="Line of credit facility, remaining borrowing capacity"&gt;4,544,000&lt;/span&gt; based on our eligible
receivables and includes a reduction in borrowing availability of approximately $&lt;span id="xdx_90A_eus-gaap--LettersOfCreditOutstandingAmount_iI_pp0p0_c20220331__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember_zr4OiKS4NhOh" title="Letters of credit outstanding, amount"&gt;3,020,000&lt;/span&gt; from outstanding standby letters of credit.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s credit facility under its Loan Agreement, as amended, with PNC contains certain financial covenants, along with customary
representations and warranties. A breach of any of these financial covenants, unless waived by PNC, could result in a default under our
credit facility allowing our lender to immediately require the repayment of all outstanding debt under our credit facility and terminate
all commitments to extend further credit. The Company was not required to perform testing of the FCCR requirement in the first
quarter of 2022 pursuant to the March 29, 2022 amendment as discussed above, otherwise, it met all of its other financial covenant
requirements.&lt;/span&gt;&lt;/p&gt;

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




</us-gaap:LongTermDebtTextBlock>
    <us-gaap:ScheduleOfDebtInstrumentsTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_89A_eus-gaap--ScheduleOfDebtInstrumentsTextBlock_zfiFJSy0V146" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Long-term
debt consists of the following:&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span id="xdx_8B7_zj5sDZULO0x4"&gt;Schedule of Long Term Debt&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(Amounts in Thousands)&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;March 31, 2022&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;December 31, 2021&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Revolving Credit&lt;/b&gt; facility
    dated May 8, 2020, borrowings based upon eligible accounts receivable, subject to monthly borrowing base calculation, balance due
    on &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_z5J55u5m5Nqb" title="Debt due date"&gt;May 15, 2024&lt;/span&gt;. Effective interest rate for first quarter of 2022 was &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90D_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220331__us-gaap--TypeOfArrangementAxis__custom--RevolvingCreditMember_zJXS2qyQ8Zp3" title="Effective interest rate"&gt;0&lt;/span&gt;%. &lt;sup&gt;(1) &lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zIL66X3BRTy7" style="text-align: right" title="Total debt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1046"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--LongTermDebt_iI_pn3n3_c20211231__us-gaap--LongtermDebtTypeAxis__custom--RevolvingCreditMember_fKDEp_zdXkub4NdCZ2" style="text-align: right" title="Total debt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1048"&gt;&#x2014;&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b id="xdx_F43_ztplLFkxIjYj"&gt;Term Loan&lt;/b&gt; dated May
    8, 2020, payable in equal monthly installments of principal, balance due on &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90B_eus-gaap--DebtInstrumentMaturityDate_dd_c20200507__20200508__us-gaap--TypeOfArrangementAxis__custom--TermLoanMember_z7Okh9VXQeF2" title="Debt due date"&gt;May 15, 2024&lt;/span&gt;. Effective interest rate for the first quarter
    of 2022 was &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90E_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_uPure_c20220331__us-gaap--TypeOfArrangementAxis__custom--TermLoanMember_zBzF5yVCT21j" title="Effective interest rate"&gt;4.3&lt;/span&gt;%. &lt;sup&gt;(1) &lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_fKDEpKDIp_zxEooRqJKZ1g" style="text-align: right"&gt;840 &lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--LongTermDebt_iI_pn3n3_c20211231__us-gaap--LongtermDebtTypeAxis__custom--TermLoanMember_fKDEpKDIp_zgMSYZRy37Ni" style="text-align: right" title="Total debt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;954 &lt;/span&gt;&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-style: normal; width: 60%; font-weight: normal; text-align: left"&gt;&lt;b&gt;Notes Payable&lt;/b&gt; to 2023 and 2025, annual interest
    rate of &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_903_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_c20220331__us-gaap--LongtermDebtTypeAxis__custom--NotePayableOneMember_zin336gIczE5" title="Effective interest rate"&gt;5.6&lt;/span&gt;% and &lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_90F_eus-gaap--DebtInstrumentInterestRateEffectivePercentage_iI_pid_dp_c20220331__us-gaap--LongtermDebtTypeAxis__custom--NotePayableTwoMember_z7EaB4bVPGF2" title="Effective interest rate"&gt;9.1&lt;/span&gt;%.&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--LongTermDebt_iI_pn3n3_c20220331__us-gaap--LongtermDebtTypeAxis__custom--NotePayableMember_zCak8iGFR6r5" style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;35&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--LongTermDebt_c20211231__us-gaap--LongtermDebtTypeAxis__custom--NotePayableMember_pn3n3" style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right" title="Total debt"&gt;39&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Total debt&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--LongTermDebt_iI_pn3n3_c20220331_zoTsy8dx0Odk" style="text-align: right"&gt;875&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--LongTermDebt_c20211231_pn3n3" style="text-align: right" title="Total debt"&gt;993&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Less current portion of long-term debt&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--LongTermDebtCurrent_iI_pn3n3_c20220331_z9enqWHAIGb" style="border-bottom: Black 1.5pt solid; text-align: right"&gt;384&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--LongTermDebtCurrent_iI_pn3n3_c20211231_zLxhKuEbnzh5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less current portion of long-term debt"&gt;393&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;Long-term debt&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20220331_z2KKoFWSB3Xf" style="border-bottom: Black 2.5pt double; text-align: right"&gt;491&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--LongTermDebtNoncurrent_iI_pn3n3_c20211231_zZqBUVq33Qv4" style="border-bottom: Black 2.5pt double; text-align: right" title="Long-term debt"&gt;600&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: -31.5pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td id="xdx_F02_zesljS6BxGE9" style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1C_zF2e3Et7L9F6" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Our revolving credit
facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F09_zVqwt9WDf1z3"&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F10_zzrb1I02XJtd" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Net of debt issuance
costs of ($&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1"&gt;120,000&lt;/span&gt;) and ($&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4"&gt;112,000&lt;/span&gt;) at March 31, 2022 and December 31, 2021, respectively.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

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      contextRef="AsOf2022-03-31_custom_TermLoanMember"
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      contextRef="AsOf2022-03-31_custom_TermLoanMember5837281"
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      contextRef="AsOf2021-12-31_custom_TermLoanMember"
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      contextRef="AsOf2022-03-31_custom_NotePayableTwoMember"
      decimals="INF"
      unitRef="Pure">0.091</us-gaap:DebtInstrumentInterestRateEffectivePercentage>
    <us-gaap:LongTermDebt
      contextRef="AsOf2022-03-31_custom_NotePayableMember"
      decimals="-3"
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    <us-gaap:LongTermDebt
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    <us-gaap:LongTermDebt contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">875000</us-gaap:LongTermDebt>
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    <us-gaap:LongTermDebtNoncurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">600000</us-gaap:LongTermDebtNoncurrent>
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    <us-gaap:DeferredFinanceCostsNet contextRef="AsOf2021-12-31" decimals="0" unitRef="USD">112000</us-gaap:DeferredFinanceCostsNet>
    <us-gaap:DebtInstrumentMaturityDate contextRef="From2020-05-062020-05-08_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember">2024-03-15</us-gaap:DebtInstrumentMaturityDate>
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      contextRef="AsOf2020-05-08_us-gaap_RevolvingCreditFacilityMember_custom_RevisedLoanAgreementMember_custom_PNCBankMember"
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    <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_806_eus-gaap--CommitmentsAndContingenciesDisclosureTextBlock_zXlOxaOdnIh1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;9.
    &lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_821_zjmpFFcuUTq8"&gt;Commitments
    and Contingencies&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Hazardous
Waste&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
connection with our waste management services, the Company processes both hazardous and non-hazardous waste, which we transport to our
own, or other, facilities for destruction or disposal. As a result of disposing of hazardous substances, in the event any cleanup is
required at the disposal site, the Company could be a potentially responsible party for the costs of the cleanup notwithstanding any
absence of fault on our part.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Legal
Matters&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
the normal course of conducting our business, we are involved in various litigation. We are not a party to any litigation or governmental
proceeding which our management believes could result in any judgments or fines against us that could would have a material adverse effect
on our financial position, liquidity or results of future operations.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;i&gt;Tetra
Tech EC, Inc. (&#x201c;Tetra Tech&#x201d;)&lt;/i&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;During
July 2020, Tetra Tech EC, Inc. (&#x201c;Tetra Tech&#x201d;) filed a complaint in the United States District Court for the Northern District
of California (the &#x201c;Court&#x201d;) against CH2M Hill, Inc. (&#x201c;CH2M&#x201d;) and four subcontractors of CH2M, including the Company
(&#x201c;Defendants&#x201d;). The complaint alleges various claims, including a claim for negligence, negligent misrepresentation, equitable
indemnification and related business claims against all defendants related to alleged damages suffered by Tetra Tech in respect of certain
draft reports prepared by defendants at the request of the U.S. Navy as part of an investigation and review of certain whistleblower
complaints about Tetra Tech&#x2019;s environmental restoration at the Hunter&#x2019;s Point Naval Shipyard in San Francisco.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;CH2M
was hired by the Navy in 2016 to review Tetra Tech&#x2019;s work. CH2M subcontracted with environmental consulting and cleanup firms Battelle
Memorial Institute, Cabrera Services, Inc., SC&amp;amp;A, Inc. and the Company to assist with the review, according to the complaint.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Our
insurance carrier is providing a defense on our behalf in connection with this lawsuit, subject to a $100,000 self-insured retention
and the terms and limitations contained in the insurance policy.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
January 7, 2021, Defendants&#x2019; motion to dismiss the complaint in its entirety was granted without prejudice, with leave to amend.
Tetra Tech subsequently filed a First Amended Complaint (&#x201c;FAC&#x201d;) and Defendants filed a motion to dismiss Tetra Tech&#x2019;s
FAC (the &#x201c;Motion&#x201d;). Tetra Tech filed an opposition to Defendant&#x2019;s motion to dismiss Tetra Tech&#x2019;s FAC. Defendants
subsequently filed a joint reply to Tetra Tech&#x2019;s motion in opposition. On January 27, 2022, the Motion was granted in part and
denied in part by the Court. Tetra Tech&#x2019;s claims for: (1) Negligence; (2) Equitable Indemnification/Contribution; and (3) Unfair
Business Practices were dismissed. Tetra Tech was given leave to re-assert the Unfair Business Practices claim but chose not to do so,
which means that claim is now also dismissed. Tetra Tech&#x2019;s claims that survived the Motion are: (1) Intentional Interference with
Contractual Relations; and (2) Inducing a Breach of Contract. The Company continues to believe it does not have any liability to Tetra
Tech.&lt;/span&gt;&lt;/p&gt;

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




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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Perma-Fix
Canada, Inc. (&#x201c;PF Canada&#x201d;)&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;During
the fourth quarter of 2021, PF Canada received a Notice of Termination (&#x201c;NOT&#x201d;) from Canadian Nuclear Laboratories, LTD. (&#x201c;CNL&#x201d;)
on a Task Order Agreement (&#x201c;TOA&#x201d;) that PF Canada entered into with CNL in May 2019 for remediation work within Ontario, Canada
(&#x201c;Agreement&#x201d;). The NOT was received after work under the TOA was substantially completed and work under the TOA has since
been completed. CNL may terminate the TOA at any time for convenience. As of March 31, 2022, PF Canada has approximately $&lt;span id="xdx_900_ecustom--UnpaidReceivablesAndUnbilledCosts_c20220101__20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zYWwBa8KOLi7"&gt;2,722,000&lt;/span&gt; in
unpaid receivables and unbilled costs due from CNL as a result of work performed under the TOA. Additionally, CNL has approximately $&lt;span id="xdx_900_eus-gaap--AccountsReceivableNetCurrent_iI_c20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zRypKegFXm39"&gt;1,150,000&lt;/span&gt;
in contractual holdback under the TOA that is payable to PF Canada. CNL also established a bond securing approximately $&lt;span id="xdx_907_ecustom--BondSecuringAmount_uCAD_c20220101__20220331__us-gaap--RelatedPartyTransactionsByRelatedPartyAxis__custom--CanadianNuclearLaboratoriesLTDMember_zcAC16bhbADl"&gt;1,900,000&lt;/span&gt; (CAD)
to cover certain issue raised in connection with the TOA. Under the TOA, CNL may be entitled to set off certain costs and expenses incurred
by CNL in connection with the termination of the TOA, including the bond as discussed above, against amounts owed to PF Canada for work
performed by PF Canada or its subcontractors. PF Canada continues to be in discussions with CNL to finalize the amounts due to PF Canada
under the TOA and continues to believes these amounts are due and payable.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Insurance&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company has a &lt;span id="xdx_90C_ecustom--PeriodOfFiniteRiskInsurancePolicy_dtY_c20030601__20030630__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zlK95s5q78ef"&gt;25&lt;/span&gt;-year finite risk insurance policy entered into in June 2003 (&#x201c;2003 Closure Policy&#x201d;) with AIG Specialty Insurance
Company (&#x201c;AIG&#x201d;), which provides financial assurance to the applicable states for our permitted facilities in the event of
unforeseen closure. The 2003 Closure Policy, as amended, provides for a maximum allowable coverage of $&lt;span id="xdx_908_ecustom--MaximumAllowableCoverageOfInsurancePolicy_iI_pp0p0_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zvVVLZTleqWe"&gt;28,177,000&lt;/span&gt; which includes available
capacity to allow for annual inflation and other performance and surety bond requirements. Total coverage under the 2003 Closure Policy,
as amended, was $&lt;span id="xdx_90D_ecustom--CoverageAmountUnderPolicy_iI_pp0p0_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zm2NxGXKfHka"&gt;21,047,000&lt;/span&gt; at March 31, 2022. At March 31, 2022 and December 31, 2021, finite risk sinking funds contributed by the
Company related to the 2003 Closure Policy which is included in other long term assets on the accompanying Consolidated Balance Sheets
totaled $&lt;span id="xdx_90F_eus-gaap--RestrictedCashNoncurrent_iI_pid_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zDL2MPtbum8g"&gt;11,482,000&lt;/span&gt; and $&lt;span id="xdx_90C_eus-gaap--RestrictedCashNoncurrent_iI_c20211231__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zt8SDxLju5fg"&gt;11,471,000&lt;/span&gt;, respectively, which included interest earned of $&lt;span id="xdx_902_eus-gaap--InterestIncomeOther_pp0p0_c20220101__20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zfG3FMnvDks"&gt;2,011,000&lt;/span&gt; and $&lt;span id="xdx_90D_eus-gaap--InterestIncomeOther_pp0p0_c20210101__20211231__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember__us-gaap--TypeOfArrangementAxis__custom--ThousandandThreeClosurePolicyMember_zRVeS3JhcMja"&gt;2,000,000&lt;/span&gt; on the finite risk sinking
funds as of March 31, 2022 and December 31, 2021, respectively. Interest income for the three months ended March 31, 2022 and 2021 was
approximately $&lt;span id="xdx_902_eus-gaap--InterestIncomeOther_pp0p0_c20220101__20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zSQ7LiHi6uq6"&gt;11,000&lt;/span&gt; and $&lt;span id="xdx_90E_eus-gaap--InterestIncomeOther_pp0p0_c20210101__20210331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zVzb1v6hadrk"&gt;18,000&lt;/span&gt;, respectively. If we so elect, AIG is obligated to pay us an amount equal to &lt;span id="xdx_90B_ecustom--InsurersObligationToEntityOnTerminationOfContract_iI_pid_dp_uPure_c20220331__srt--CounterpartyNameAxis__custom--AmericanInternationalGroupIncMember_zbzx5Kz9Xfm6"&gt;100&lt;/span&gt;% of the finite risk
sinking fund account balance in return for complete release of liability from both us and any applicable regulatory agency using this
policy as an instrument to comply with financial assurance requirements.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Letter
of Credits and Bonding Requirements&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;From
time to time, the Company is required to post standby letters of credit and various bonds to support contractual obligations to customers
and other obligations, including facility closures. At March 31, 2022, the total amount of standby letters of credit outstanding was
approximately $&lt;span id="xdx_902_eus-gaap--LettersOfCreditOutstandingAmount_iI_pp0p0_c20220331_zuq0PF9HcEB4"&gt;3,020,000&lt;/span&gt; and the total amount of bonds outstanding was approximately $&lt;span id="xdx_902_ecustom--BondOutstanding_iI_pp0p0_c20220331_zpu369i4xZL7"&gt;51,295,000&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;

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      contextRef="From2022-01-012022-03-31_custom_CanadianNuclearLaboratoriesLTDMember"
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    <PESI:CoverageAmountUnderPolicy
      contextRef="AsOf2022-03-31_custom_AmericanInternationalGroupIncMember"
      decimals="0"
      unitRef="USD">21047000</PESI:CoverageAmountUnderPolicy>
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    <us-gaap:LettersOfCreditOutstandingAmount contextRef="AsOf2022-03-31" decimals="0" unitRef="USD">3020000</us-gaap:LettersOfCreditOutstandingAmount>
    <PESI:BondOutstanding contextRef="AsOf2022-03-31" decimals="0" unitRef="USD">51295000</PESI:BondOutstanding>
    <us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_805_eus-gaap--DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_znaZpZAyBdl" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;10.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_823_zkoT5rBmcDLf"&gt;Discontinued
    Operations &lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s discontinued operations consist of all our subsidiaries included in our previous Industrial Segment which encompasses
subsidiaries divested in 2011 and prior and three previously closed locations.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s discontinued operations had net losses of $&lt;span id="xdx_903_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_iN_pn3p0_di_c20220101__20220331_zioVgPMwygR6"&gt;94,000&lt;/span&gt; (net of tax benefit of $&lt;span id="xdx_905_eus-gaap--DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal_c20220101__20220331_zH9vz0c8a0Nd" title="Net of tax benefit"&gt;63,000&lt;/span&gt;) and $&lt;span id="xdx_90F_eus-gaap--IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_iN_pn3p0_di_c20210101__20210331_znQjJomTGpM7"&gt;115,000&lt;/span&gt; (net of taxes of $&lt;span id="xdx_908_eus-gaap--DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal_c20210101__20210331_zRiZzAioNmb7"&gt;0&lt;/span&gt;) for
the three months ended March 31, 2022 and 2021. The losses were primarily due to costs incurred in the administration and continued monitoring
of our discontinued operations. The Company&#x2019;s discontinued operations had no revenues for each of the periods noted above.&lt;/span&gt;&lt;/p&gt;

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




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

&lt;p id="xdx_892_eus-gaap--ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_zN8raQR1UXkg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table presents the major class of assets of discontinued operations as of March 31, 2022 and December 31, 2021. No assets and
liabilities were held for sale at each of the periods noted.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B2_zCw6TCsHw5Of"&gt;Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49C_20220331_z2Jmwq4lKA3h" style="text-align: center"&gt;March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_499_20211231_zE7mZ5SLu0G3" style="text-align: center"&gt;December 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(Amounts in Thousands)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_409_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_iB_z70f3m0X1ok8" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Current assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_403_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_i01I_pn3n3_maAODGIzQBh_zQVeyOZrOKag" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Other assets&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;27&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;15&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_i01TI_pn3n3_mtAODGIzQBh_maAODGIzvZz_zr0GndZ0jFFb" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Total current assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;27&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;15&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_iB_pn3n3_zBiK2YxNTyE9" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Long-term assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_i01I_pn3n3_maDGIDOzk0M_zA9r5xdqNQZd" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Property, plant and equipment, net &lt;sup id="xdx_F41_zhagj9NT53F3"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_i01TI_pn3n3_mtDGIDOzk0M_maAODGIzvZz_zzX2A7HS8dVe" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Total long-term assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperation_iTI_pn3n3_mtAODGIzvZz_zLbUFJBisSB3" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt; font-weight: bold; text-align: left"&gt;Total assets&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;108&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;96&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_iB_pn3n3_zj2yy5saFUSg" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Current liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_i01I_pn3n3_maLODGIzbI9_z7ZxUV3L3zZ4" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Accounts payable&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;34&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;3&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_i01I_pn3n3_maLODGIzbI9_zO0kgW6DRJXi" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Accrued expenses and other liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;147&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;154&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_i01I_pn3n3_maLODGIzbI9_zCuKFGcbAvm9" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;Environmental liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;621&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;349&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_406_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_iTI_pn3n3_mtLODGIzbI9_maLODGIzllr_zahUmbXopMub" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Total current liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;802&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;506&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_iB_pn3n3_z4mAO4eE7Mmg" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Long-term liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_ecustom--DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities_iI_pn3n3_maLODGIzVJd_zs9FjI3zpiwi" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Closure liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;153&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;150&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_406_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_i01I_pn3n3_maLODGIzVJd_z7g5vyw2uo85" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;Environmental liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;255&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;527&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_i01TI_pn3n3_mtLODGIzVJd_maLODGIzllr_zSso4qZNeXze" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt; text-align: left"&gt;Total long-term liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;408&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;677&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_402_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_iI_pn3n3_mtLODGIzllr_zp4uyM5HrNl1" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt; font-weight: bold; text-align: left"&gt;Total liabilities&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;1,210&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;1,183&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.75in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F05_zgSmrax4Gsb3"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1E_zN7wpQQcq0a7" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;net of accumulated
depreciation of $&lt;span id="xdx_901_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20220101__20220331_ztFgjoKcIlPd" title="Depreciation"&gt;&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIERpc3Bvc2FsIEdyb3VwcywgSW5jbHVkaW5nIERpc2NvbnRpbnVlZCBPcGVyYXRpb24gQmFsYW5jZSBTaGVldCAoRGV0YWlscykgKFBhcmVudGhldGljYWwpAA__" id="xdx_904_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20210101__20211231_zRS5vyoy0Jlh"&gt;10,000&lt;/span&gt;&lt;/span&gt; for each period presented.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

&lt;p id="xdx_8A0_zTSC5s9ZYcyf" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"&gt;&#160;&lt;/p&gt;

</us-gaap:DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock>
    <us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">-94000</us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity>
    <us-gaap:DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal
      contextRef="From2022-01-01to2022-03-31"
      decimals="0"
      unitRef="USD">63000</us-gaap:DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal>
    <us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">-115000</us-gaap:IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity>
    <us-gaap:DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal
      contextRef="From2021-01-012021-03-31"
      decimals="0"
      unitRef="USD">0</us-gaap:DiscontinuedOperationTaxExpenseBenefitFromProvisionForGainLossOnDisposal>
    <us-gaap:ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_892_eus-gaap--ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_zN8raQR1UXkg" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
following table presents the major class of assets of discontinued operations as of March 31, 2022 and December 31, 2021. No assets and
liabilities were held for sale at each of the periods noted.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B2_zCw6TCsHw5Of"&gt;Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-left: auto; border-collapse: collapse; width: 90%; margin-right: auto"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_49C_20220331_z2Jmwq4lKA3h" style="text-align: center"&gt;March 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" id="xdx_499_20211231_zE7mZ5SLu0G3" style="text-align: center"&gt;December 31,&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td style="border-bottom: Black 1.5pt solid"&gt;(Amounts in Thousands)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2022&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;2021&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_409_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_iB_z70f3m0X1ok8" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Current assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_403_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_i01I_pn3n3_maAODGIzQBh_zQVeyOZrOKag" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="width: 60%; text-align: left"&gt;Other assets&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;27&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; width: 16%; text-align: right"&gt;15&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_i01TI_pn3n3_mtAODGIzQBh_maAODGIzvZz_zr0GndZ0jFFb" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Total current assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;27&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;15&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_iB_pn3n3_zBiK2YxNTyE9" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Long-term assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent_i01I_pn3n3_maDGIDOzk0M_zA9r5xdqNQZd" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Property, plant and equipment, net &lt;sup id="xdx_F41_zhagj9NT53F3"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_i01TI_pn3n3_mtDGIDOzk0M_maAODGIzvZz_zzX2A7HS8dVe" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Total long-term assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;81&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--AssetsOfDisposalGroupIncludingDiscontinuedOperation_iTI_pn3n3_mtAODGIzvZz_zLbUFJBisSB3" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt; font-weight: bold; text-align: left"&gt;Total assets&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;108&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;96&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_iB_pn3n3_zj2yy5saFUSg" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Current liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40F_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_i01I_pn3n3_maLODGIzbI9_z7ZxUV3L3zZ4" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Accounts payable&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;34&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;$&lt;/td&gt;&lt;td style="text-align: right"&gt;3&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40A_eus-gaap--DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent_i01I_pn3n3_maLODGIzbI9_zO0kgW6DRJXi" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Accrued expenses and other liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;147&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;154&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_400_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_i01I_pn3n3_maLODGIzbI9_zCuKFGcbAvm9" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;Environmental liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;621&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;349&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_406_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_iTI_pn3n3_mtLODGIzbI9_maLODGIzllr_zahUmbXopMub" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-left: 10pt; text-align: left"&gt;Total current liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;802&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;506&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract_iB_pn3n3_z4mAO4eE7Mmg" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;Long-term liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_40C_ecustom--DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities_iI_pn3n3_maLODGIzVJd_zs9FjI3zpiwi" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Closure liabilities&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;153&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="text-align: right"&gt;150&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_406_eus-gaap--DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities_i01I_pn3n3_maLODGIzVJd_z7g5vyw2uo85" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;Environmental liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;255&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;527&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_404_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent_i01TI_pn3n3_mtLODGIzVJd_maLODGIzllr_zSso4qZNeXze" style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="padding-bottom: 1.5pt; padding-left: 10pt; text-align: left"&gt;Total long-term liabilities&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;408&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 1.5pt solid; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="border-bottom: Black 1.5pt solid; text-align: right"&gt;677&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr id="xdx_402_eus-gaap--LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_iI_pn3n3_mtLODGIzllr_zp4uyM5HrNl1" style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="padding-bottom: 2.5pt; font-weight: bold; text-align: left"&gt;Total liabilities&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;1,210&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="border-bottom: Black 2.5pt double; text-align: left"&gt;$&lt;/td&gt;&lt;td style="border-bottom: Black 2.5pt double; text-align: right"&gt;1,183&lt;/td&gt;&lt;td style="padding-bottom: 2.5pt; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify; text-indent: 0.75in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F05_zgSmrax4Gsb3"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1E_zN7wpQQcq0a7" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;net of accumulated
depreciation of $&lt;span id="xdx_901_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20220101__20220331_ztFgjoKcIlPd" title="Depreciation"&gt;&lt;span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIERpc3Bvc2FsIEdyb3VwcywgSW5jbHVkaW5nIERpc2NvbnRpbnVlZCBPcGVyYXRpb24gQmFsYW5jZSBTaGVldCAoRGV0YWlscykgKFBhcmVudGhldGljYWwpAA__" id="xdx_904_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20210101__20211231_zRS5vyoy0Jlh"&gt;10,000&lt;/span&gt;&lt;/span&gt; for each period presented.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

</us-gaap:ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">27000</us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">15000</us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets>
    <us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">27000</us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent>
    <us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">15000</us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent
      contextRef="AsOf2022-03-31"
      decimals="-3"
      id="Fact001152"
      unitRef="USD">81000</us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent
      contextRef="AsOf2021-12-31"
      decimals="-3"
      id="Fact001153"
      unitRef="USD">81000</us-gaap:DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">81000</us-gaap:DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">81000</us-gaap:DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent>
    <us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">108000</us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation>
    <us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">96000</us-gaap:AssetsOfDisposalGroupIncludingDiscontinuedOperation>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">34000</us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">3000</us-gaap:DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">147000</us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">154000</us-gaap:DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">621000</us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">349000</us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities>
    <us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">802000</us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent>
    <us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">506000</us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent>
    <PESI:DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">153000</PESI:DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities>
    <PESI:DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">150000</PESI:DisposalGroupIncludingDiscontinuedOperationClosureNoncurrentLiabilities>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">255000</us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities>
    <us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">527000</us-gaap:DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities>
    <us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">408000</us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent>
    <us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">677000</us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent>
    <us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation contextRef="AsOf2022-03-31" decimals="-3" unitRef="USD">1210000</us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation>
    <us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation contextRef="AsOf2021-12-31" decimals="-3" unitRef="USD">1183000</us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation>
    <us-gaap:DepreciationAndAmortizationDiscontinuedOperations
      contextRef="From2022-01-01to2022-03-31"
      decimals="-3"
      unitRef="USD">10000000</us-gaap:DepreciationAndAmortizationDiscontinuedOperations>
    <us-gaap:DepreciationAndAmortizationDiscontinuedOperations
      contextRef="From2021-01-012021-12-31"
      decimals="-3"
      unitRef="USD">10000000</us-gaap:DepreciationAndAmortizationDiscontinuedOperations>
    <us-gaap:SegmentReportingDisclosureTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_807_eus-gaap--SegmentReportingDisclosureTextBlock_zbBLFmQUHWB1" style="font: 10pt Times New Roman, Times, Serif; display: none; margin-top: 0pt; margin-bottom: 0pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
&lt;tr style="vertical-align: top; text-align: left"&gt;
  &lt;td style="width: 0.25in"&gt;&lt;b&gt;11.&lt;/b&gt;&lt;/td&gt;
  &lt;td&gt;&lt;b&gt;&lt;span id="xdx_828_zZrDM3WsEd7a"&gt;Operating Segments&lt;/span&gt;&lt;/b&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;In
accordance with ASC 280, &#x201c;Segment Reporting&#x201d;, the Company defines an operating segment as a business activity: (1) from which
we may earn revenue and incur expenses; (2) whose operating results are regularly reviewed by the chief operating decision maker (&#x201c;CODM&#x201d;)
to make decisions about resources to be allocated to the segment and assess its performance; and (3) for which discrete financial information
is available.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Our
reporting segments are defined as below:&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;TREATMENT
SEGMENT, which includes:&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;-&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;nuclear,
    low-level radioactive, mixed waste (containing both hazardous and low-level radioactive constituents), hazardous and non-hazardous
    waste treatment, processing and disposal services primarily through four uniquely licensed and permitted treatment and storage facilities;
    and&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;-&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;R&amp;amp;D
    activities to identify, develop and implement innovative waste processing techniques for problematic waste streams.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;SERVICES
SEGMENT, which includes:&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;-&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Technical
    services, which include:&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.65in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cb;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;professional
    radiological measurement and site survey of large government and commercial installations using advanced methods, technology and
    engineering;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&#x25cb;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;integrated
    Occupational Safety and Health services including industrial hygiene (&#x201c;IH&#x201d;) assessments; hazardous materials surveys,
    e.g., exposure monitoring; lead and asbestos management/abatement oversight; indoor air quality evaluations; health risk and exposure
    assessments; health &amp;amp; safety plan/program development, compliance auditing and training services; and Occupational Safety and
    Health Administration (&#x201c;OSHA&#x201d;) citation assistance;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&#x25cb;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;global
    technical services providing consulting, engineering, project management, waste management, environmental, and decontamination and
    decommissioning field, technical, and management personnel and services to commercial and government customers; and&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&#x25cb;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;on-site
    waste management services to commercial and governmental customers.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;




&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;-&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Nuclear
    services, which include:&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.65in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#x25cb;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;technology-based
    services including engineering, decontamination and decommissioning (&#x201c;D&amp;amp;D&#x201d;), specialty services and construction,
    logistics, transportation, processing and disposal;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif"&gt;&#x25cb;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;remediation
    of nuclear licensed and federal facilities and the remediation cleanup of nuclear legacy sites. Such services capability includes:
    project investigation; radiological engineering; partial and total plant D&amp;amp;D; facility decontamination, dismantling, demolition,
    and planning; site restoration; logistics; transportation; and emergency response; and&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 1in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse"&gt;
  &lt;tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top"&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;-&lt;/span&gt;&lt;/td&gt;
    &lt;td style="font: 10pt Times New Roman, Times, Serif; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;A
    company owned equipment calibration and maintenance laboratory that services, maintains, calibrates, and sources (i.e., rental) health
    physics, IH and customized nuclear, environmental, and occupational safety and health (&#x201c;NEOSH&#x201d;) instrumentation.&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;
&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in; text-align: justify; text-indent: -0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s segment also included the Medical Segment in 2021. As previously discussed, the Company made the strategic decision
to cease all R&amp;amp;D activities under the Medical Segment and sold &lt;span id="xdx_902_ecustom--SalesOfInterestPercentage_pid_dp_uPure_c20210101__20211231__srt--ConsolidatedEntitiesAxis__custom--PFMPolandMember_z7dJJN551k7i"&gt;100&lt;/span&gt;&lt;/span&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;%
of its interest in PFM Poland (which comprised the Medical Segment) in December 2021. The Company&#x2019;s Medical Segment had not generated
any revenue and was involved in the Company&#x2019;s medical isotope production technology.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Our
reporting segments exclude our corporate headquarters and our discontinued operations (see &#x201c;Note 10 &#x2013; Discontinued Operations&#x201d;)
which do not generate revenues.&lt;/span&gt;&lt;/p&gt;

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

&lt;p id="xdx_897_eus-gaap--ScheduleOfSegmentReportingInformationBySegmentTextBlock_zuYSjZ7a2Mw7" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
table below presents certain financial information of our operating segments for the three months ended March 31, 2022 and 2021 (in thousands):&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Segment
Reporting for the Quarter Ended March 31, 2022&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B6_zQEgUyWPAuuh"&gt;Schedule
of Segment Reporting Information&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Segments Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Corporate&lt;sup id="xdx_F53_zF7NNJ9Mdpxl"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Consolidated Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: left"&gt;Revenue from external customers&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zbwWEP8ZwyB2" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;7,479&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zY5wcAStu3j5" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;8,436&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_z9lcRBPEMRN6" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;15,915&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z8rzgjQx2Nz8" style="width: 8%; text-align: right" title="Revenue from external customers"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1206"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zdgfPX2nyk6b" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;15,915&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Intercompany revenues&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zQyT3i0tLZPa" style="text-align: right" title="Revenue from external customers"&gt;111&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zA5sZM6CBK8a" style="text-align: right" title="Revenue from external customers"&gt;183&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zXS8BGL09Vo3" style="text-align: right" title="Revenue from external customers"&gt;294&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z3acVperDTLb" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1216"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331_z9ucMmizulu1" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1218"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Gross profit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_z2nziN8TvpQa" style="text-align: right" title="Revenue from external customers"&gt;638&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zqzPf8yxGHpi" style="text-align: right" title="Revenue from external customers"&gt;998&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zc6nkGOF2OC9" style="text-align: right" title="Revenue from external customers"&gt;1,636&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zzGWlXXovQ6" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1226"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--GrossProfit_pn3n3_c20220101__20220331_z0hboGI197nk" style="text-align: right" title="Revenue from external customers"&gt;1,636&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Research and development&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_ztzwXGWl9p9d" style="text-align: right" title="Revenue from external customers"&gt;65&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4J0goShFWKe" style="text-align: right" title="Revenue from external customers"&gt;14&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zPyRFA9jUNz5" style="text-align: right" title="Revenue from external customers"&gt;79&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zkg2emApq2n" style="text-align: right" title="Revenue from external customers"&gt;17&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331_zPsOMhsyXbLi" style="text-align: right" title="Revenue from external customers"&gt;96&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest income&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zegMM9Lifa3h" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1240"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zod9UrMURBY" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1242"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zuKZxl8PLlM6" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1244"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z8Pt1RYd0UWh" style="text-align: right" title="Revenue from external customers"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331_zjyZicvF7jhb" style="text-align: right" title="Revenue from external customers"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Interest expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zlEiIpZTFBE8" style="text-align: right" title="Revenue from external customers"&gt;(14&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zzdJ7uCKwDq" style="text-align: right" title="Revenue from external customers"&gt;(1&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zvkC4HuoNNle" style="text-align: right" title="Revenue from external customers"&gt;(15&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zngOcZXgA5fb" style="text-align: right" title="Revenue from external customers"&gt;(20&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331_zkcvjI1E6uA8" style="text-align: right" title="Revenue from external customers"&gt;(35&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest expense-financing fees&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_ztukg8M3toM6" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1260"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zaLchlG6hxuf" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1262"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zxUVKWnSqcYf" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1264"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zzmUyL2NhTub" style="text-align: right" title="Revenue from external customers"&gt;(13&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331_z1DyZ9WIHvhf" style="text-align: right" title="Revenue from external customers"&gt;(13&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Depreciation and amortization&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_z7CqHmOK4xy7" style="text-align: right" title="Revenue from external customers"&gt;371&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zB9BSVTilSN9" style="text-align: right" title="Revenue from external customers"&gt;71&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zQxFK0DjGceg" style="text-align: right" title="Revenue from external customers"&gt;442&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zUP5lkYAZ722" style="text-align: right" title="Revenue from external customers"&gt;14&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331_zCHlWzCi5zMd" style="text-align: right" title="Revenue from external customers"&gt;456&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment (loss) income before income taxes&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zj17NbyD8Nn" style="text-align: right" title="Revenue from external customers"&gt;(481&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z0LzgN06svCk" style="text-align: right" title="Revenue from external customers"&gt;285&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zihgg6y0QbFc" style="text-align: right" title="Revenue from external customers"&gt;(196&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zFhtA9tB0Ath" style="text-align: right" title="Revenue from external customers"&gt;(1,726&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331_zhlACV9TSdr4" style="text-align: right" title="Revenue from external customers"&gt;(1,922&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Income tax benefit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zvnsYeexMmFd" style="text-align: right" title="Revenue from external customers"&gt;(559&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zNh8gC1x3JJ" style="text-align: right" title="Revenue from external customers"&gt;(114&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zManwkKcJKe4" style="text-align: right" title="Revenue from external customers"&gt;(673&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_ze3ImTC0YLoh" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1296"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331_zUyfRYM7mMyg" style="text-align: right" title="Revenue from external customers"&gt;(673&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment income (loss)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zs2a8yrIeY1j" style="text-align: right" title="Revenue from external customers"&gt;78&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_ztXXNCWlM249" style="text-align: right" title="Revenue from external customers"&gt;399&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zOy3h5gWoPX" style="text-align: right" title="Revenue from external customers"&gt;477&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zj5Z5ooFZj6a" style="text-align: right" title="Revenue from external customers"&gt;(1,726&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331_z8tdtxT8REib" style="text-align: right" title="Revenue from external customers"&gt;(1,249&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Expenditures for segment assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zuC4RlgjeRL" style="text-align: right" title="Revenue from external customers"&gt;296&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z1FOW1K5E7qc" style="text-align: right" title="Revenue from external customers"&gt;49&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zgr7vqbxziil" style="text-align: right" title="Revenue from external customers"&gt;345&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z4CvqwyVQXTl" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1316"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331_fKDIp_zuB314UiONp6" style="text-align: right" title="Revenue from external customers"&gt;345&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Segment
Reporting for the Quarter Ended March 31, 2021&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Medical&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Segments Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;span id="xdx_F56_z7o9x61TZdh1" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Corporate&lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Consolidated Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 38%; text-align: left"&gt;Revenue from external customers&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;7,495&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;15,638&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1324"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"/&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;23,133&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="width: 8%; text-align: right" title="Revenue from external customers"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1328"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;23,133&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Intercompany revenues&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Intercompany revenues"&gt;660&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Intercompany revenues"&gt;7&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Intercompany revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1336"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Intercompany revenues"&gt;667&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Intercompany revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1340"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--IntercompanyRevenues_c20210101__20210331_pn3n3" style="font-weight: bold; text-align: right" title="Intercompany revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1342"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Gross profit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Gross profit"&gt;925&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Gross profit"&gt;1,431&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Gross profit"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1348"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Gross profit"&gt;2,356&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Gross profit"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1352"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--GrossProfit_c20210101__20210331_pn3n3" style="text-align: right" title="Gross profit"&gt;2,356&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Research and development&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Research and development"&gt;47&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Research and development"&gt;13&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Research and development"&gt;76&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Research and development"&gt;136&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Research and development"&gt;14&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331_pn3n3" style="text-align: right" title="Research and development"&gt;150&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest income&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1368"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1370"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1372"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1374"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Interest income"&gt;18&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--InterestIncomeOther_c20210101__20210331_pn3n3" style="text-align: right" title="Interest income"&gt;18&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Interest expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zF2meSZNPmg2" style="text-align: right" title="Interest expense"&gt;(19&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zJZJvkdYbRdb" style="text-align: right" title="Interest expense"&gt;(8&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zJbiXOmFENuf" style="font-weight: bold; text-align: right" title="Interest expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1384"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZE6bNWBiOra" style="text-align: right" title="Interest expense"&gt;(27&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zSQAQ8kF5c5j" style="text-align: right" title="Interest expense"&gt;(40&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331_zTs7COPu1SD9" style="text-align: right" title="Interest expense"&gt;(67&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest expense-financing fees&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zOwhWt054Rtd" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1392"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zSJOFdVAign9" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1394"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zd0zgJxWe83f" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1396"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZygsAKheOil" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1398"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zEQMoxDgIuuf" style="text-align: right" title="Interest expense-financing fees"&gt;(8&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331_z4BKl3rt79H4" style="text-align: right" title="Interest expense-financing fees"&gt;(8&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Depreciation and amortization&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;310&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;85&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Depreciation and amortization"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1408"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;395&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;5&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--DepreciationAndAmortization_c20210101__20210331_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;400&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment (loss) income before income taxes&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(119&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;555&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(76&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;360&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(1,415&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(1,055&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Income tax benefit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Income tax (benefit) expense"&gt;(17&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1430"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1432"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Income tax (benefit) expense"&gt;(17&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1436"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331_pn3n3" style="text-align: right" title="Income tax (benefit) expense"&gt;(17&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment (loss) income&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(102&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;555&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(76&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;377&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(1,415&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(1,038&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Expenditures for segment assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)"&gt;357&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)"&gt;4&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Expenditures for segment assets (net)"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1456"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)"&gt;361&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Expenditures for segment assets (net)"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1460"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20210101__20210331_fKDIp_zPlxDVMCAna1" style="text-align: right" title="Expenditures for segment assets (net)"&gt;361&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-indent: -27pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F0C_zPLXrK3WN3Y1"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1B_zaKTVodTNF4h" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Amounts reflect
the activity for corporate headquarters not included in the segment information.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td style="text-align: justify"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F00_z4sPfA1Lyvub"&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F19_zVs4s7kjvoVl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Net of financed
amount of $&lt;span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure"&gt;114,000&lt;/span&gt; and $&lt;span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg"&gt;29,000&lt;/span&gt; for the three months ended March 31, 2022 and 2021, respectively.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

&lt;p id="xdx_8AA_zYnQBdS6JSG4" style="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;




</us-gaap:SegmentReportingDisclosureTextBlock>
    <PESI:SalesOfInterestPercentage
      contextRef="From2021-01-012021-12-31_custom_PFMPolandMember"
      decimals="INF"
      unitRef="Pure">1</PESI:SalesOfInterestPercentage>
    <us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_897_eus-gaap--ScheduleOfSegmentReportingInformationBySegmentTextBlock_zuYSjZ7a2Mw7" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
table below presents certain financial information of our operating segments for the three months ended March 31, 2022 and 2021 (in thousands):&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Segment
Reporting for the Quarter Ended March 31, 2022&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="display: none; font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;span id="xdx_8B6_zQEgUyWPAuuh"&gt;Schedule
of Segment Reporting Information&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Segments Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Corporate&lt;sup id="xdx_F53_zF7NNJ9Mdpxl"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Consolidated Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 48%; text-align: left"&gt;Revenue from external customers&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zbwWEP8ZwyB2" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;7,479&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zY5wcAStu3j5" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;8,436&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_z9lcRBPEMRN6" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;15,915&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z8rzgjQx2Nz8" style="width: 8%; text-align: right" title="Revenue from external customers"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1206"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn3n3_c20220101__20220331_zdgfPX2nyk6b" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;15,915&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Intercompany revenues&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zQyT3i0tLZPa" style="text-align: right" title="Revenue from external customers"&gt;111&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zA5sZM6CBK8a" style="text-align: right" title="Revenue from external customers"&gt;183&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zXS8BGL09Vo3" style="text-align: right" title="Revenue from external customers"&gt;294&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z3acVperDTLb" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1216"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_ecustom--IntercompanyRevenues_pn3n3_c20220101__20220331_z9ucMmizulu1" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1218"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Gross profit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_z2nziN8TvpQa" style="text-align: right" title="Revenue from external customers"&gt;638&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zqzPf8yxGHpi" style="text-align: right" title="Revenue from external customers"&gt;998&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zc6nkGOF2OC9" style="text-align: right" title="Revenue from external customers"&gt;1,636&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--GrossProfit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zzGWlXXovQ6" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1226"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--GrossProfit_pn3n3_c20220101__20220331_z0hboGI197nk" style="text-align: right" title="Revenue from external customers"&gt;1,636&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Research and development&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_ztzwXGWl9p9d" style="text-align: right" title="Revenue from external customers"&gt;65&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z4J0goShFWKe" style="text-align: right" title="Revenue from external customers"&gt;14&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zPyRFA9jUNz5" style="text-align: right" title="Revenue from external customers"&gt;79&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zkg2emApq2n" style="text-align: right" title="Revenue from external customers"&gt;17&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--ResearchAndDevelopmentExpense_pn3n3_c20220101__20220331_zPsOMhsyXbLi" style="text-align: right" title="Revenue from external customers"&gt;96&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest income&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zegMM9Lifa3h" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1240"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zod9UrMURBY" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1242"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zuKZxl8PLlM6" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1244"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z8Pt1RYd0UWh" style="text-align: right" title="Revenue from external customers"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--InterestIncomeOther_pn3n3_c20220101__20220331_zjyZicvF7jhb" style="text-align: right" title="Revenue from external customers"&gt;11&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Interest expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zlEiIpZTFBE8" style="text-align: right" title="Revenue from external customers"&gt;(14&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zzdJ7uCKwDq" style="text-align: right" title="Revenue from external customers"&gt;(1&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zvkC4HuoNNle" style="text-align: right" title="Revenue from external customers"&gt;(15&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zngOcZXgA5fb" style="text-align: right" title="Revenue from external customers"&gt;(20&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--InterestExpense_iN_pn3n3_di_c20220101__20220331_zkcvjI1E6uA8" style="text-align: right" title="Revenue from external customers"&gt;(35&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest expense-financing fees&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_ztukg8M3toM6" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1260"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zaLchlG6hxuf" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1262"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zxUVKWnSqcYf" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1264"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zzmUyL2NhTub" style="text-align: right" title="Revenue from external customers"&gt;(13&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20220101__20220331_z1DyZ9WIHvhf" style="text-align: right" title="Revenue from external customers"&gt;(13&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Depreciation and amortization&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_z7CqHmOK4xy7" style="text-align: right" title="Revenue from external customers"&gt;371&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zB9BSVTilSN9" style="text-align: right" title="Revenue from external customers"&gt;71&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zQxFK0DjGceg" style="text-align: right" title="Revenue from external customers"&gt;442&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zUP5lkYAZ722" style="text-align: right" title="Revenue from external customers"&gt;14&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--DepreciationAndAmortization_pn3n3_c20220101__20220331_zCHlWzCi5zMd" style="text-align: right" title="Revenue from external customers"&gt;456&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment (loss) income before income taxes&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zj17NbyD8Nn" style="text-align: right" title="Revenue from external customers"&gt;(481&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z0LzgN06svCk" style="text-align: right" title="Revenue from external customers"&gt;285&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zihgg6y0QbFc" style="text-align: right" title="Revenue from external customers"&gt;(196&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zFhtA9tB0Ath" style="text-align: right" title="Revenue from external customers"&gt;(1,726&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_pn3n3_c20220101__20220331_zhlACV9TSdr4" style="text-align: right" title="Revenue from external customers"&gt;(1,922&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Income tax benefit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zvnsYeexMmFd" style="text-align: right" title="Revenue from external customers"&gt;(559&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zNh8gC1x3JJ" style="text-align: right" title="Revenue from external customers"&gt;(114&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zManwkKcJKe4" style="text-align: right" title="Revenue from external customers"&gt;(673&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_ze3ImTC0YLoh" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1296"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--IncomeTaxExpenseBenefit_pn3n3_c20220101__20220331_zUyfRYM7mMyg" style="text-align: right" title="Revenue from external customers"&gt;(673&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment income (loss)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zs2a8yrIeY1j" style="text-align: right" title="Revenue from external customers"&gt;78&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_ztXXNCWlM249" style="text-align: right" title="Revenue from external customers"&gt;399&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zOy3h5gWoPX" style="text-align: right" title="Revenue from external customers"&gt;477&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zj5Z5ooFZj6a" style="text-align: right" title="Revenue from external customers"&gt;(1,726&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_pn3n3_c20220101__20220331_z8tdtxT8REib" style="text-align: right" title="Revenue from external customers"&gt;(1,249&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Expenditures for segment assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zuC4RlgjeRL" style="text-align: right" title="Revenue from external customers"&gt;296&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_z1FOW1K5E7qc" style="text-align: right" title="Revenue from external customers"&gt;49&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;
    &lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zgr7vqbxziil" style="text-align: right" title="Revenue from external customers"&gt;345&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_z4CvqwyVQXTl" style="font-weight: bold; text-align: right" title="Revenue from external customers"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1316"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20220101__20220331_fKDIp_zuB314UiONp6" style="text-align: right" title="Revenue from external customers"&gt;345&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;Segment
Reporting for the Quarter Ended March 31, 2021&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

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

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"&gt;
  &lt;tr style="vertical-align: bottom"&gt;
    &lt;td&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Treatment&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Services&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Medical&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Segments Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;&lt;span id="xdx_F56_z7o9x61TZdh1" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Corporate&lt;sup&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;
    &lt;td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center"&gt;Consolidated Total&lt;/td&gt;&lt;td style="padding-bottom: 1.5pt"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="width: 38%; text-align: left"&gt;Revenue from external customers&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_981_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;7,495&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;15,638&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1324"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"/&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;23,133&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="width: 8%; text-align: right" title="Revenue from external customers"&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1328"&gt;&#x2014;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="width: 2%"&gt;&#160;&lt;/td&gt;
    &lt;td style="width: 1%; text-align: left"&gt;$&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20210101__20210331_pn3n3" style="width: 6%; text-align: right" title="Revenue from external customers"&gt;23,133&lt;/td&gt;&lt;td style="width: 1%; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Intercompany revenues&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Intercompany revenues"&gt;660&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Intercompany revenues"&gt;7&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Intercompany revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1336"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Intercompany revenues"&gt;667&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_ecustom--IntercompanyRevenues_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Intercompany revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1340"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_ecustom--IntercompanyRevenues_c20210101__20210331_pn3n3" style="font-weight: bold; text-align: right" title="Intercompany revenues"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1342"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Gross profit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Gross profit"&gt;925&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Gross profit"&gt;1,431&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Gross profit"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1348"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Gross profit"&gt;2,356&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--GrossProfit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Gross profit"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1352"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--GrossProfit_c20210101__20210331_pn3n3" style="text-align: right" title="Gross profit"&gt;2,356&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Research and development&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Research and development"&gt;47&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Research and development"&gt;13&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Research and development"&gt;76&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Research and development"&gt;136&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Research and development"&gt;14&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--ResearchAndDevelopmentExpense_c20210101__20210331_pn3n3" style="text-align: right" title="Research and development"&gt;150&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest income&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1368"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1370"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1372"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_982_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="font-weight: bold; text-align: right" title="Interest income"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1374"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--InterestIncomeOther_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Interest income"&gt;18&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--InterestIncomeOther_c20210101__20210331_pn3n3" style="text-align: right" title="Interest income"&gt;18&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Interest expense&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zF2meSZNPmg2" style="text-align: right" title="Interest expense"&gt;(19&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zJZJvkdYbRdb" style="text-align: right" title="Interest expense"&gt;(8&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zJbiXOmFENuf" style="font-weight: bold; text-align: right" title="Interest expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1384"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZE6bNWBiOra" style="text-align: right" title="Interest expense"&gt;(27&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zSQAQ8kF5c5j" style="text-align: right" title="Interest expense"&gt;(40&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--InterestExpense_iN_pn3n3_di_c20210101__20210331_zTs7COPu1SD9" style="text-align: right" title="Interest expense"&gt;(67&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Interest expense-financing fees&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_zOwhWt054Rtd" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1392"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_zSJOFdVAign9" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1394"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_zd0zgJxWe83f" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1396"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_zZygsAKheOil" style="font-weight: bold; text-align: right" title="Interest expense-financing fees"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1398"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_zEQMoxDgIuuf" style="text-align: right" title="Interest expense-financing fees"&gt;(8&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--FinancingInterestExpense_iN_pn3n3_di_c20210101__20210331_z4BKl3rt79H4" style="text-align: right" title="Interest expense-financing fees"&gt;(8&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Depreciation and amortization&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;310&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;85&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Depreciation and amortization"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1408"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;395&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98E_eus-gaap--DepreciationAndAmortization_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;5&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--DepreciationAndAmortization_c20210101__20210331_pn3n3" style="text-align: right" title="Depreciation and amortization"&gt;400&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment (loss) income before income taxes&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(119&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;555&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(76&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98B_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;360&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(1,415&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_c20210101__20210331_pn3n3" style="text-align: right" title="Segment income (loss) before income taxes"&gt;(1,055&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Income tax benefit&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_984_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Income tax (benefit) expense"&gt;(17&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1430"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98F_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1432"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Income tax (benefit) expense"&gt;(17&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Income tax (benefit) expense"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1436"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98A_eus-gaap--IncomeTaxExpenseBenefit_c20210101__20210331_pn3n3" style="text-align: right" title="Income tax (benefit) expense"&gt;(17&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt;
    &lt;td style="text-align: left"&gt;Segment (loss) income&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_983_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(102&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;555&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_987_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(76&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;377&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(1,415&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_986_eus-gaap--IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest_c20210101__20210331_pn3n3" style="text-align: right" title="Segment income (loss)"&gt;(1,038&lt;/td&gt;&lt;td style="text-align: left"&gt;)&lt;/td&gt;&lt;/tr&gt;
  &lt;tr style="vertical-align: bottom; background-color: White"&gt;
    &lt;td style="text-align: left"&gt;Expenditures for segment assets&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98C_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--TreatmentMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)"&gt;357&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_985_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--ServicesMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)"&gt;4&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_989_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--MedicalMember_pn3n3" style="font-weight: bold; text-align: right" title="Expenditures for segment assets (net)"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1456"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_98D_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__custom--SegmentsTotalMember_pn3n3" style="text-align: right" title="Expenditures for segment assets (net)"&gt;361&lt;/td&gt;&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td style="font-weight: bold"&gt;&#160;&lt;/td&gt;
    &lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_980_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_c20210101__20210331__us-gaap--StatementBusinessSegmentsAxis__us-gaap--CorporateAndOtherMember_pn3n3" style="font-weight: bold; text-align: right" title="Expenditures for segment assets (net)"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="-sec-ix-hidden: xdx2ixbrl1460"&gt;&#x2014;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="font-weight: bold; text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;
    &lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td id="xdx_988_eus-gaap--PaymentsToAcquirePropertyPlantAndEquipment_pn3n3_c20210101__20210331_fKDIp_zPlxDVMCAna1" style="text-align: right" title="Expenditures for segment assets (net)"&gt;361&lt;/td&gt;&lt;td style="text-align: left"&gt;&lt;sup&gt;(2)&lt;/sup&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;/table&gt;

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-indent: -27pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&#160;&lt;/b&gt;&lt;/span&gt;&lt;/p&gt;

&lt;table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; width: 100%"&gt;&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F0C_zPLXrK3WN3Y1"&gt;(1)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F1B_zaKTVodTNF4h" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Amounts reflect
the activity for corporate headquarters not included in the segment information.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="text-align: left"&gt;&#160;&lt;/td&gt;&lt;td&gt;&#160;&lt;/td&gt;&lt;td style="text-align: justify"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;
&lt;tr style="vertical-align: top; text-align: justify"&gt;
&lt;td style="width: 15pt; text-align: left"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;sup id="xdx_F00_z4sPfA1Lyvub"&gt;(2)&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt;&lt;td style="width: 5pt"/&gt;&lt;td style="text-align: justify"&gt;&lt;span id="xdx_F19_zVs4s7kjvoVl" style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Net of financed
amount of $&lt;span id="xdx_908_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20220101__20220331_zIFd04ow4We9" title="Financed portion amount in the purchase of capital expenditure"&gt;114,000&lt;/span&gt; and $&lt;span id="xdx_906_ecustom--FinancedPortionAmountInPurchaseOfCapitalExpenditure_c20210101__20210331_z0aNbLGRCVAg"&gt;29,000&lt;/span&gt; for the three months ended March 31, 2022 and 2021, respectively.&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;/table&gt;

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      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
      decimals="-3"
      unitRef="USD">660000</PESI:IntercompanyRevenues>
    <PESI:IntercompanyRevenues
      contextRef="From2021-01-012021-03-31_custom_ServicesMember"
      decimals="-3"
      unitRef="USD">7000</PESI:IntercompanyRevenues>
    <PESI:IntercompanyRevenues
      contextRef="From2021-01-012021-03-31_custom_SegmentsTotalMember"
      decimals="-3"
      unitRef="USD">667000</PESI:IntercompanyRevenues>
    <us-gaap:GrossProfit
      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
      decimals="-3"
      unitRef="USD">925000</us-gaap:GrossProfit>
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      contextRef="From2021-01-012021-03-31_custom_ServicesMember"
      decimals="-3"
      unitRef="USD">1431000</us-gaap:GrossProfit>
    <us-gaap:GrossProfit
      contextRef="From2021-01-012021-03-31_custom_SegmentsTotalMember"
      decimals="-3"
      unitRef="USD">2356000</us-gaap:GrossProfit>
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      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">2356000</us-gaap:GrossProfit>
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      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
      decimals="-3"
      unitRef="USD">47000</us-gaap:ResearchAndDevelopmentExpense>
    <us-gaap:ResearchAndDevelopmentExpense
      contextRef="From2021-01-012021-03-31_custom_ServicesMember"
      decimals="-3"
      unitRef="USD">13000</us-gaap:ResearchAndDevelopmentExpense>
    <us-gaap:ResearchAndDevelopmentExpense
      contextRef="From2021-01-012021-03-31_custom_MedicalMember"
      decimals="-3"
      unitRef="USD">76000</us-gaap:ResearchAndDevelopmentExpense>
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      contextRef="From2021-01-012021-03-31_custom_SegmentsTotalMember"
      decimals="-3"
      unitRef="USD">136000</us-gaap:ResearchAndDevelopmentExpense>
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      contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember"
      decimals="-3"
      unitRef="USD">14000</us-gaap:ResearchAndDevelopmentExpense>
    <us-gaap:ResearchAndDevelopmentExpense
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">150000</us-gaap:ResearchAndDevelopmentExpense>
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      contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember"
      decimals="-3"
      unitRef="USD">18000</us-gaap:InterestIncomeOther>
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      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">18000</us-gaap:InterestIncomeOther>
    <us-gaap:InterestExpense
      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
      decimals="-3"
      unitRef="USD">19000</us-gaap:InterestExpense>
    <us-gaap:InterestExpense
      contextRef="From2021-01-012021-03-31_custom_ServicesMember"
      decimals="-3"
      unitRef="USD">8000</us-gaap:InterestExpense>
    <us-gaap:InterestExpense
      contextRef="From2021-01-012021-03-31_custom_SegmentsTotalMember"
      decimals="-3"
      unitRef="USD">27000</us-gaap:InterestExpense>
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      contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember"
      decimals="-3"
      unitRef="USD">40000</us-gaap:InterestExpense>
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      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">67000</us-gaap:InterestExpense>
    <us-gaap:FinancingInterestExpense
      contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember"
      decimals="-3"
      unitRef="USD">8000</us-gaap:FinancingInterestExpense>
    <us-gaap:FinancingInterestExpense
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
      unitRef="USD">8000</us-gaap:FinancingInterestExpense>
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      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
      decimals="-3"
      unitRef="USD">310000</us-gaap:DepreciationAndAmortization>
    <us-gaap:DepreciationAndAmortization
      contextRef="From2021-01-012021-03-31_custom_ServicesMember"
      decimals="-3"
      unitRef="USD">85000</us-gaap:DepreciationAndAmortization>
    <us-gaap:DepreciationAndAmortization
      contextRef="From2021-01-012021-03-31_custom_SegmentsTotalMember"
      decimals="-3"
      unitRef="USD">395000</us-gaap:DepreciationAndAmortization>
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      contextRef="From2021-01-012021-03-31_us-gaap_CorporateAndOtherMember"
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    <us-gaap:DepreciationAndAmortization
      contextRef="From2021-01-012021-03-31"
      decimals="-3"
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    <us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
      contextRef="From2021-01-012021-03-31_custom_TreatmentMember"
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    <us-gaap:IncomeTaxDisclosureTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_80B_eus-gaap--IncomeTaxDisclosureTextBlock_zSl2mQVkMpq7" style="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;12.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_820_zmBqf4qJ3zJ6"&gt;Income Taxes&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company uses an estimated annual effective tax rate, which is based on expected annual income, statutory tax rates and tax planning opportunities
available in the various jurisdictions in which the Company operates, to determine its quarterly provision for income taxes.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company had income tax benefit of approximately $&lt;span id="xdx_909_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3d_di_c20220101__20220331_zdCdKCjvdZ79"&gt;673,000&lt;/span&gt; for continuing operations for the three months ended March 31, 2022 as compared
to income tax benefit of approximately $&lt;span id="xdx_904_eus-gaap--IncomeTaxExpenseBenefit_iN_pn3d_di_c20210101__20210331_zQ3HseJmVnIg"&gt;17,000&lt;/span&gt; for continuing operations for the three months ended March 31, 2021. The Company&#x2019;s
effective tax rate was approximately &lt;span id="xdx_906_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pid_dp_uPure_c20220101__20220331_zXpOUhQ4IOCj"&gt;35.0&lt;/span&gt;% and &lt;span id="xdx_90D_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pid_dp_uPure_c20210101__20210331_zxQa7IvS04ac"&gt;1.6&lt;/span&gt;% for the three months ended March 31, 2022 and the corresponding period of 2021, respectively.
The Company&#x2019;s tax rate for the three months ended March 31, 2022 was impacted by non-deductible expenses and state taxes. The Company&#x2019;s
tax rate for the three months ended March 31, 2021 was impacted by non-deductible expenses, state taxes, and by the Company&#x2019;s full
valuation on its net deferred tax assets which was subsequently released partially in the third quarter of 2021.&lt;/span&gt;&lt;/p&gt;

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      contextRef="From2021-01-012021-03-31"
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      unitRef="USD">-17000</us-gaap:IncomeTaxExpenseBenefit>
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      decimals="INF"
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    <us-gaap:EffectiveIncomeTaxRateContinuingOperations
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      decimals="INF"
      unitRef="Pure">0.016</us-gaap:EffectiveIncomeTaxRateContinuingOperations>
    <us-gaap:VariableInterestEntityDisclosureTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_80D_eus-gaap--VariableInterestEntityDisclosureTextBlock_zYULxnZfBWX1" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="text-align: justify; width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;13.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td style="text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_823_zHyu4aD6ysYd"&gt;Variable Interest Entities (&#x201c;VIE&#x201d;)&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company and Engineering/Remediation Resources Group, Inc. (&#x201c;ERRG&#x201d;) previously entered into an unpopulated joint venture agreement
for project work bids within the Company&#x2019;s Services Segment with the joint venture doing business as Perma-Fix ERRG, a general
partnership. The Company has a &lt;span id="xdx_90E_eus-gaap--VariableInterestEntityOwnershipPercentage_pid_dp_c20220101__20220331_z6rlTYCizBNe"&gt;51&lt;/span&gt;% partnership interest in the joint venture and ERRG has a &lt;span id="xdx_90A_eus-gaap--VariableInterestEntityOwnershipPercentage_pid_dp_c20220101__20220331__dei--LegalEntityAxis__custom--EngineeringRemediationResourcesGroupIncMember_zg3pO0inReG8"&gt;49&lt;/span&gt;% partnership interest in the joint venture.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company determines whether joint ventures in which it has invested meet the criteria of a VIE at the start of each new venture and when
a reconsideration event has occurred. A VIE is a legal entity that satisfies any of the following characteristics: (a) the legal entity
does not have sufficient equity investment at risk; (b) the equity investors at risk as a group, lack the characteristics of a controlling
financial interest; or (c) the legal entity is structured with disproportionate voting rights.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company consolidates a VIE if it is determined to be the primary beneficiary of the VIE. The primary beneficiary has both the power to
direct the activities of the VIE that most significantly impact the entity&#x2019;s economic performance and the obligation to absorb
losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;Based
on the Company&#x2019;s evaluation of Perma-Fix ERRG and related agreements with Perma-Fix ERRG, the Company determined that Perma-Fix
ERRG continues to be a VIE in which we are the primary beneficiary. At March 31, 2022, Perma-Fix ERRG had total assets of $&lt;span id="xdx_90D_eus-gaap--Assets_iI_pid_c20220331__dei--LegalEntityAxis__custom--PermaFixERRGMember_zyppQN5LyWdl"&gt;122,000&lt;/span&gt; and
total liabilities of approximately $&lt;span id="xdx_908_eus-gaap--Liabilities_iI_pid_c20220331__dei--LegalEntityAxis__custom--PermaFixERRGMember_zNxLTaxkizxd"&gt;122,000&lt;/span&gt; which are all recorded as current.&lt;/span&gt;&lt;/p&gt;

</us-gaap:VariableInterestEntityDisclosureTextBlock>
    <us-gaap:VariableInterestEntityOwnershipPercentage
      contextRef="From2022-01-01to2022-03-31"
      decimals="INF"
      unitRef="Pure">0.51</us-gaap:VariableInterestEntityOwnershipPercentage>
    <us-gaap:VariableInterestEntityOwnershipPercentage
      contextRef="From2022-01-012022-03-31_custom_EngineeringRemediationResourcesGroupIncMember"
      decimals="INF"
      unitRef="Pure">0.49</us-gaap:VariableInterestEntityOwnershipPercentage>
    <us-gaap:Assets
      contextRef="AsOf2022-03-31_custom_PermaFixERRGMember"
      decimals="0"
      unitRef="USD">122000</us-gaap:Assets>
    <us-gaap:Liabilities
      contextRef="AsOf2022-03-31_custom_PermaFixERRGMember"
      decimals="0"
      unitRef="USD">122000</us-gaap:Liabilities>
    <us-gaap:CompensationAndEmployeeBenefitPlansTextBlock contextRef="From2022-01-01to2022-03-31">&lt;p id="xdx_806_eus-gaap--CompensationAndEmployeeBenefitPlansTextBlock_z0Wvewh3ONn8" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&#160;&lt;/span&gt;&lt;/p&gt;

&lt;table border="0" cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; margin-top: 0pt; margin-bottom: 0pt"&gt;
&lt;tr style="vertical-align: top"&gt;
  &lt;td style="width: 0.25in"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;14.&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;
  &lt;td&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;&lt;b&gt;&lt;span style="text-decoration: underline"&gt;&lt;span id="xdx_828_zKohzZPd5NMl"&gt;Executive Compensation&lt;/span&gt;&lt;/span&gt;&lt;/b&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;


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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;The
Company&#x2019;s Compensation Committee and the Board determined that no performance payment would be made to each executive officer under
his 2021 Management Incentive Plan (&#x201c;MIP&#x201d;). In lieu of any performance payment to each executive officer under his 2021 MIP
and in an attempt to retain the executive officer, on January 20, 2022, the Compensation Committee and the Board determined that the
base annual compensation for each executive officer for 2022 is increased by approximately &lt;span id="xdx_909_ecustom--PercentageIncreaseInAnnualCompensation_pid_dp_c20220101__20220331__srt--TitleOfIndividualAxis__srt--ExecutiveOfficerMember_zzx4BKhP77Ag"&gt;6.4&lt;/span&gt;%, effective January 1, 2022, to offset
the cost-of-living increase.&lt;/span&gt;&lt;/p&gt;

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

&lt;p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0; text-align: justify"&gt;&lt;span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"&gt;On
January 20, 2022, the Board and the Compensation Committee also approved individual MIP for the calendar year 2022 for each of our executive
officers. Each MIP is effective January 1, 2022 and applicable for year 2022. Each MIP provides guidelines for the calculation of annual
cash incentive-based compensation, subject to Compensation Committee oversight and modification. The performance compensation under each
of the MIPs is based upon meeting certain of the Company&#x2019;s separate target objectives during 2022. Assuming each target objective
is achieved under the same performance threshold range under each MIP, the total potential target performance compensation payable ranges
from &lt;span id="xdx_903_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zoTabCeMVdUf" title="Compensation arrangement with individual, cash awards, minimum, percentage"&gt;25&lt;/span&gt;% to &lt;span id="xdx_902_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--CEOMember_z5b6xDBMT406" title="Compensation arrangement with individual, cash awards, maximum, percentage"&gt;150&lt;/span&gt;% of the 2022 base salary for the CEO ($&lt;span id="xdx_90C_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zqCAb6jKpLP2" title="Compensation arrangement with individual, cash awards, minimum, amount"&gt;93,717&lt;/span&gt; to $&lt;span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--CEOMember_zWjJSLq2Gxpc" title="Compensation arrangement with individual, cash awards, maximum, amount"&gt;562,304&lt;/span&gt;), &lt;span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zR6EIgTyIZT9" title="Compensation arrangement with individual, cash awards, minimum, percentage"&gt;25&lt;/span&gt;% to &lt;span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zvT8aZx4OZDe" title="Compensation arrangement with individual, cash awards, maximum, percentage"&gt;100&lt;/span&gt;% of the 2022 base salary for the CFO ($&lt;span id="xdx_904_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_z0FbJEbayUgc" title="Compensation arrangement with individual, cash awards, minimum, amount"&gt;76,193&lt;/span&gt;
to $&lt;span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__srt--ChiefFinancialOfficerMember_zrabjIwE7D7l" title="Compensation arrangement with individual, cash awards, maximum, amount"&gt;304,772&lt;/span&gt;), &lt;span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_z7ZYoqgMYbO3" title="Compensation arrangement with individual, cash awards, minimum, percentage"&gt;25&lt;/span&gt;% to &lt;span id="xdx_905_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_zmEhL94zKPJ3" title="Compensation arrangement with individual, cash awards, maximum, percentage"&gt;100&lt;/span&gt;% of the 2022 base salary for the EVP of Strategic Initiatives ($&lt;span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_zjqOLC7QpBM" title="Compensation arrangement with individual, cash awards, minimum, amount"&gt;63,495&lt;/span&gt; to $&lt;span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfStrategicInitiativesMember_z4aApH7Mg0Vk" title="Compensation arrangement with individual, cash awards, maximum, amount"&gt;253,980&lt;/span&gt;), &lt;span id="xdx_900_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zADzbP3dk9p3" title="Compensation arrangement with individual, cash awards, minimum, percentage"&gt;25&lt;/span&gt;% to &lt;span id="xdx_907_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zB3JMne2MsIi" title="Compensation arrangement with individual, cash awards, maximum, percentage"&gt;100&lt;/span&gt;% of the 2022
base salary for the EVP of Nuclear and Technical Services ($&lt;span id="xdx_901_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zQzWxsKTMOa1" title="Compensation arrangement with individual, cash awards, minimum, amount"&gt;76,193&lt;/span&gt; to $&lt;span id="xdx_90A_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfNuclearAndTechnicalServicesMember_zbXA9MhzNKld" title="Compensation arrangement with individual, cash awards, maximum, amount"&gt;304,772&lt;/span&gt;) and &lt;span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_zUmoOKiREC1d" title="Compensation arrangement with individual, cash awards, minimum, percentage"&gt;25&lt;/span&gt;% to &lt;span id="xdx_906_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumPercentage_pid_dp_uPure_c20220119__20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_zMqqkQ7m6xKd" title="Compensation arrangement with individual, cash awards, maximum, percentage"&gt;100&lt;/span&gt;% ($&lt;span id="xdx_909_ecustom--CompensationArrangementWithIndividualCashAwardsMinimumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_znOGHeyofI3k" title="Compensation arrangement with individual, cash awards, minimum, amount"&gt;65,308&lt;/span&gt; to $&lt;span id="xdx_901_ecustom--CompensationArrangementWithIndividualCashAwardsMaximumAmount_iI_pp0p0_c20220120__srt--TitleOfIndividualAxis__custom--ExecutiveVicePresidentOfWasteTreatmentOperationsMember_z1thkEZ7O3o5" title="Compensation arrangement with individual, cash awards, maximum, amount"&gt;261,233&lt;/span&gt;) of the 2022 base
salary for the EVP of Waste Treatment Operations.&lt;/span&gt;&lt;/p&gt;

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

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for issuance, and determined that no material recognizable subsequent events occurred.&lt;/span&gt;&lt;/p&gt;

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facility is collateralized by our accounts receivable and our term loan is collateralized by our property, plant, and equipment.</link:footnote>
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        <link:footnote id="Footnote001073" xlink:label="Footnote001073" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">Net of debt issuance
costs of ($<xhtml:span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_909_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20220331_zzlLaT4zjGx1">120,000</xhtml:span>) and ($<xhtml:span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIExvbmcgVGVybSBEZWJ0IChEZXRhaWxzKSAoUGFyZW50aGV0aWNhbCkA" id="xdx_906_eus-gaap--DeferredFinanceCostsNet_iI_pid_c20211231_zFrARFrLVEc4">112,000</xhtml:span>) at March 31, 2022 and December 31, 2021, respectively.</link:footnote>
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depreciation of $<xhtml:span id="xdx_901_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20220101__20220331_ztFgjoKcIlPd" title="Depreciation"><xhtml:span class="xdx_phnt_RGlzY2xvc3VyZSAtIFNjaGVkdWxlIG9mIERpc3Bvc2FsIEdyb3VwcywgSW5jbHVkaW5nIERpc2NvbnRpbnVlZCBPcGVyYXRpb24gQmFsYW5jZSBTaGVldCAoRGV0YWlscykgKFBhcmVudGhldGljYWwpAA__" id="xdx_904_eus-gaap--DepreciationAndAmortizationDiscontinuedOperations_c20210101__20211231_zRS5vyoy0Jlh">10,000</xhtml:span></xhtml:span> for each period presented.</link:footnote>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
